NEET Biology Multiple Choice Questions – Animal Kingdom

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Animal Kingdom Multiple Choice Questions And Answers

Question 1. Pick the odd pair out.

  1. Cellular Level: Porifera
  2. Tissue Level: Aschelminthes
  3. Organ Level: Phatyhelminthes
  4. Organ System Level: Annelida

Answer: 2. Tissue Level: Aschelminthes

Question 2. Animals possess various types of symmetry. Select the correctly matched.

  1. Echinodermates possess radial symmetry.
  2. Arthropods possess bilateral symmetry.
  3. Sponges are mostly asymmetrical.
  4. All of these.

Answer: 4. All of these

Question 3. Select the group of organisms given below that have diploblastic members only.

  1. Ctenoplana, Taenia, Fasciola
  2. Euspongia, Physalia, Meandrina
  3. Wuchereria, Culex, Limulus
  4. Aedes, Ascaris, Hydra

Answer: 2. Euspongia, Physalia, Meandrina

Question 4. In Deuterostomia, blastopore forms

  1. Mouth
  2. Anus
  3. Both
  4. None

Answer: 2. Anus

Question 5. Open blood vascular system is found in

  1. Saccoglossns
  2. Anopheles
  3. Pila
  4. All of these

Answer: 4. All of these

Biology MCQs with answers

Question 6. Select the pseudocoelomates from the list of organisms given below.

  1. Ascaris, Fasciola, Taenia
  2. Culex, Locusta, Limulus
  3. Wuchereria, Ascaris, Ancylostoma
  4. Nereis, Hirudinaria, Wuchereria

Answer: 3. Wuchereria, Ascaris, Ancylostoma

Question 7. Closed blood vascular system found in

  1. Bombyx
  2. Sepia
  3. Balanoglossus
  4. Ascidia

Answer: 2. Bombyx

Question 8. The animals in which cells are organized into structural and functional units called as tissues, organs, and organ systems are grouped under which subkingdom?

  1. Parazoa
  2. Eumetazoa
  3. Metazoa
  4. Bilateria

Answer: 2. Eumetazoa

Question 9. When any plane passing through the central axis of the body divides the organism into two identical halves, it is radial symmetry. Which of the following set of animals has radial symmetry?

  1. Housefly, fish, human beings
  2. Sponges, hydra, crabs
  3. Coelenterates, ctenophores, echinoderms
  4. Annelids, arthropods, housefly

Answer: 3. Coelenterates, ctenophores, echinoderms

Question 10. A closed circulatory system is found in

  1. Earthworm
  2. Arthropoda
  3. Unio
  4. Leech

Answer: 1. Earthworm

Question 11. Sponges are the most primitive multicellular organisms with which of the following levels of organization?

  1. Acellular
  2. Cellular
  3. Tissue
  4. Organ system

Answer: 2. Cellular

Biology MCQs with answers

Question 12. An incomplete alimentary canal with a blind sac type of body plan is present in

  1. Annelids
  2. Arthropods
  3. Platyhelminthes
  4. Sponges

Answer: 3. Platyhelminthes

Question 13. Select incorrect matching of animals, their body symmetry, and coelom.

NEET Biology Animal Kingdom Match The Animals Their Body Symmetry And Coelom

Answer: 4

Question 14. Acoelomate diploblastic animal phylum is

  1. Platihelminthes
  2. Cnidaria
  3. Aschelminthes
  4. Hemichordata

Answer: 2. Cnidaria

Question 15. Which of the following animal(s) has the tube-within-tube type of body plan evolved along the deuterostomic evolutionary line?

  1. Annelids
  2. Arthropods
  3. Echinoderms
  4. Molluscs

Answer: 1. Annelids

Question 16. In the course of evolution, true coelom appeared for the first time in

  1. Annelida
  2. Chordata
  3. Aschelminthes
  4. Echinodermata

Answer: 1. Annelida

Question 17. Which of the following is the incorrect matching of the phylum, their alimentary canal, and metameric segmentation?

NEET Biology Animal Kingdom Match The Phylum Their Alimentary Canal And Metameric Segmentation

Answer: 4

Question 18. Sponges in which the cells are loosely aggregated and do not form tissues or organs are grouped under which subkingdom?

  1. Metazoa
  2. Eumetazoa
  3. Parazoa
  4. Bilateria

Answer: 3. Parazoa

Biology MCQs with answers

Question 19. The level of organization in coelenterates is

  1. Acellular
  2. Cellular
  3. Tissue
  4. Organ system

Answer: 3. Tissue

Question 20. The blind sac body plan is found in

  1. Sponges
  2. Annelids
  3. Coelenterates
  4. Roundworms

Answer: 3. Coelenterates

Question 21. Annelids possess

  1. Cell aggregate plan
  2. Blind sac plan
  3. Tube within a tube plan
  4. Hollow sac plan

Answer: 3. Tube within a tube plan

Question 22. “Tube in a tube” plan is not exhibited by which one of the following phyla?

  1. Coclenterata
  2. Aschelminthes
  3. Annelida
  4. Arthropoda

Answer: 1. Coclenterata

Question 23. An animal having a triploblastic coelomic condition is

  1. Ascaris
  2. Periplaneta
  3. Planaria
  4. Sycon

Answer: 3. Planaria

Question 24. Animals that are triploblastic with tube-within-tube type of body plan and embryonic blastopore forms anus (deuterostomes) are

  1. Annelids
  2. Molluscs
  3. Platyhelminthes
  4. Echinoderms

Answer: 4. Echinoderms

Question 25. Echinoderms and chordates have

  1. Pseudocoel
  2. Shizocoelom
  3. Enterocoelom
  4. Hemocoel

Answer: 3. Enterocoelom

Question 26. The body cavity of arthropods is called

  1. Coelom
  2. Hemocoel
  3. Pseudocoel
  4. Gastrovascular cavity

Answer: 2. Hemocoel

NEET Biology MCQ With Solutions

Question 27. A deuterostome animal is

  1. Starfish
  2. Sea anemone
  3. Pearl oyster
  4. Octopus

Answer: 1. Starfish

Question 28. True segmentation (metameric) occurred for the first time in

  1. Platyhelminthes
  2. Aschelminthes
  3. Annelids
  4. Arthropods

Answer: 3. Annelids

Question 29. Animals possessing pseudocolor are

  1. Flatworms
  2. Roundworms
  3. Annelids
  4. Molluscs

Answer: 2. Roundworms

Question 30. True coelom appeared first in the course of evolution in

  1. Echinodermata
  2. Annelida
  3. Chordata
  4. Aschelminthes

Answer: 2. Annelida

Question 31. Biradial symmetry is found in

  1. Obelia
  2. Sea anemone
  3. Hydra
  4. Aurelia

Answer: 2. Sea anemone

Question 32. Which is the only phylum in the animal kingdom without any nerve cell?

  1. Porifera
  2. Coelenterata
  3. Annelida
  4. Eumetazoa

Answer: 1. Porifera

Question 33. The basis of the classification of protozoa is

  1. Mode of nutrition
  2. Mode of reproduction
  3. Mode of locomotion
  4. Mode of respiration

Answer: 3. Mode of locomotion

Question 34. Dum-dum fever is caused by

  1. Leishmania donovani
  2. Gloss in a pal is
  3. Giardia intestinal is
  4. Trypanosoma ambient

Answer: 1. Leishmania donovani

NEET Biology MCQ With Solutions

Question 35. The relationship between Lophomonas and wood cock¬roach is of

  1. Parasitism
  2. Commensalism
  3. Symbiosis
  4. Ammensalism

Answer: 3. Symbiosis

Question 36. Oriental sore disease in man is caused by which one of the following?

  1. Leishmania tropica
  2. L. donovani
  3. L. brasiliensis
  4. Phlebotomus intermedins

Answer: 1. Leishmania tropica

Question 37. Trypanosoma gambiense causes

  1. Sleeping sickness
  2. Yellow fever
  3. Kala-azar
  4. Oriental sore

Answer: 1. Sleeping sickness

Question 38. The vector of Trypanosoma gambiense is

  1. Sandfly
  2. Fruit fly
  3. Tsetse fly
  4. House fly

Answer: 3. Tsetse fly

Question 39. Sarcodine-causing dysentery is

  1. Giardia
  2. Entamoeba
  3. Amoeba
  4. Trypanosoma

Answer: 2. Entamoeba

Question 40. Silica shells may or may not occur in which one of the following?

  1. Amoeboids
  2. Heliozoans
  3. Radiolarians
  4. Foraminiferans

Answer: 2. Heliozoans

Question 41. The time period from the initial infection to the first appearance of symptoms is known as

  1. Pre-patent period
  2. Incubation period
  3. Pre-erythrocytic period
  4. Exo-erythrocytic period
  5. Answer: 2. Incubation period

Question 42. The tetra nucleated cyst stage is found in

  1. Entamoeba coli
  2. Entamoeba histolytica
  3. Leishmania
  4. Trypanosoma

Answer: 2. Entamoeba histolytica

Question 43. Which of the following organisms is known to form abscesses in the human liver, lungs, brain, etc.?

  1. Entamoeba histolytica
  2. Monocyst is
  3. Plasmodium
  4. Fasciola hepatica

Answer: 1. Entamoeba histolytica

Question 44. Which one of the following constitutes the reserve food material in the cyst of Entamoeba histolytica?

  1. Volutin granules
  2. Starch granules
  3. Glycogen granules
  4. Fat droplets

Answer: 3. Glycogen granules

Question 45. Slipper Animalcule is the name of

  1. Pelomyxa
  2. Actinophrys
  3. Euglena
  4. Paramecium

Answer: 4. Paramecium

Question 46. Organelle concerned with offense and defense in Paramecium is

  1. Trichocyst
  2. Radial canals
  3. Kappa particles
  4. Peristome

Answer: 1. Trichocyst

Question 47. Conjugation in Paramecium is by

  1. Exchange of micronucleus
  2. Exchange of macronucleus
  3. Exchange of + and – nuclei
  4. Exchange of nuclei

Answer: 1. Exchange of micronucleus

NEET Biology MCQ With Solutions

Question 48. The function of cytology in Paramecium is to

  1. Filter food particles
  2. Form the bolus of the food material
  3. Segregate debris from useful food material
  4. Egest the indigestible waste

Answer: 4. Egest the indigestible waste

Question 49. Contractile vacuoles of Paramecium are analogous to

  1. Sweat glands of mammals
  2. Uriniferous tubules
  3. The gastrovascular cavity of Hydra
  4. Typhlosole of Earthworm

Answer: 2. Uriniferous tubules

Question 50. The removal of micronucleus in Paramecium will impair the function of

  1. Reproduction
  2. Excretion
  3. Osmoregulation
  4. Locomotion

Answer: 1. Reproduction

Question 51. Locomotion in sporozoans occurs by

  1. Flagella
  2. Cilia
  3. Pseudopodia
  4. Wriggling movement

Answer: 4. Wriggling movement

Question 52. The most important characteristic of phylum Porifera is that the organisms

  1. Are acellular
  2. Possess blind sac type of body plan
  3. Possess canal system and choanocytes
  4. Possess water vascular system

Answer: 3. Possess canal system and choanocytes

Question 53. Most of the sponges are marine and remain attached to rocks (sessile). The freshwater sponge is

  1. Sycon
  2. Spongilla
  3. Cliona
  4. Euplectella

Answer: 2. Spongilla

Question 54. The path of water in a sponge is

  1. Dermal ostia → Gastral ostia → Osculum
  2. Dermal ostia → Gastral ostia → Spongocoel → Osculum
  3. Osculum→ Spongocoel → Choanocytes→ Ostia
  4. Pinacocytes → Choanocytes → Enteron → Osculum

Answer: 2. Dermal ostia → Gastral ostia → Spongocoel→Osculum

Question 55. The movement of water in the second type of canal system is

NEET Biology Animal Kingdom Movement Of Water In Syconoid Type Of Canal System

Answer: 2

Question 56. Which one of the following cells is totipotent and responsible for regenerative capacity in sponges?

  1. Pinacocytes
  2. Thesocytes
  3. Archaeocytes
  4. Scleroblast

Answer: 3. Archaeocytes

Question 57. The skeleton of the bath sponge, Euspongia, is made of

  1. Spongin fibers
  2. Siliceous spicules
  3. Calcareous spicules
  4. Spongin fibers and siliceous spicules

Answer: 1. Spongin fibers

Question 58. A sponge harmful to the oyster industry is

  1. Spongilla
  2. Euspongia
  3. Hyalonema
  4. Cliona

Answer: 4. Cliona

Question 59. Which of the following lives in a commensal relationship with shrimps and is called as Venus flower basket?

  1. Leucosolenia
  2. Euplectella
  3. Euspongia
  4. Sycon

Answer: 2. Euplectella

Question 60. The larva of Leucosolenia is

  1. Parenchymula
  2. Amphiblastula
  3. Planula
  4. Trochophore

Answer: 1. Parenchymula

NEET Biology MCQ With Solutions

Question 61. The mode of digestion in sponges is

  1. Intracellular
  2. Intercellular
  3. Intracellular and intercellular
  4. None of these

Answer: 1. Intracellular

Question 62. The spongocoel of sponges is homologous to the

  1. True coelom of earthworm
  2. Hemocoel of cockroach
  3. Pseudocoelom of Ascaris
  4. None of these

Answer: 4. None of these

Question 63. In the absence of a closed vascular system, how do sponges manage to distribute the nutritive substances from choanocytes to rest of the cells?

  1. Through cell-to-cell diffussion
  2. Through mesoglea which acts as the food reservoir and distribution system
  3. Through the wandering cells, amoebocytes
  4. Through cell-to-cell diffusion and amoebocytes

Answer: 4. Through cell-to-cell diffusion and amoebocytes

Question 64. Hydra and Obelia are/have

  1. Diploblastic, blind sac body plan, radial symmetry, acoelomate
  2. Diploblastic, bilaterally symmetrical, acoelomate
  3. Triploblastic, radially symmetrical, coelomate
  4. Triploblastic, bilaterally symmetrical, coelomate

Answer: 1. Diploblastic, blind sac body plan, radial symmetry, acoelomate

Question 65. The most important characteristic of phylum Cnidaria is

  1. Cnidoblasts
  2. Choanocytes
  3. Thesocytes
  4. Archaeocytes

Answer: 1. Cnidoblasts

Question 66. The digestion in Hydra is

  1. Extracellular
  2. Intracellular
  3. Extracellular and intracellular
  4. Holozoic

Answer: 3. Extracellular and intracellular

Question 67. Metagenesis is found in

  1. Physalia (Portuguese man of war)
  2. Hydra
  3. Obelia
  4. Both (1) and (3)

Answer: 4. Both (1) and (3)

Question 68. Which of the following statements is incorrect about metagenesis?

  1. The alternation of asexual and sexual phases in the life cycle of Obelia is called metagenesis.
  2. Metagenesis is similar to alternation of generations as found in plants.
  3. Both the medusa and polyp arc are diploid.
  4. Medusa is the sexual phase and polyp is the asexual phase.

Answer: 2. Metagenesis is similar to the alternation of generations as found in plants.

Question 69. Jellyfish belong to a class

  1. Hydrozoa
  2. Scyphozoa
  3. Anthozoa
  4. None of these

Answer: 2. Scyphozoa

Question 70. Sea anemone belongs to

  1. Anthozoa
  2. Hydrozoa
  3. Scyphozoa
  4. Coelenterata

Answer: 1. Anthozoa

Question 71. Which one of the following

  1. Sea pen
  2. Sea horse
  3. Sea urchin
  4. Sea cucumber

Answer: 1. Sea pen

NEET Biology MCQ With Solutions

Question 72. Mark the incorrect match?

  1. Obelia—Planula larva
  2. Aurelia—Ephyra larva
  3. Nereis—Trochophore
  4. Hydra—Hydrula larva

Answer: 4. Hydra—Hydrula larva

Question 73. Hypnotoxin is produced by

  1. Penetrant
  2. Volvent
  3. Large glutinant
  4. Small glutinant

Answer: 1. Penetrant

Question 74. During the discharge of nematocyst, the function of the lasso is to

  1. Press and squeeze out the threaded tube
  2. Trigger the stimulus
  3. Prevent the detachment of nematocyst from nematoblast
  4. None of these

Answer: 3. Prevent the detachment of nematocyst from nematoblast

Question 75. A piece of Hydra will regenerate into a full Hydra if it contains a part of

  1. Epidermis
  2. Epidermis, gastrodermis, and interstitial cells
  3. Basal disc
  4. Epidermis, gastrodermis, and tentacles

Answer: 2. Epidermis, gastrodermis, and interstitial cells

Question 76. Which one of the following (cell types) contains the symbiotic Zoochlorellae in Hydra?

  1. Epithelio muscular cells of epidermis
  2. Endothelial muscular cells of the gastrodermis
  3. Interstitial cells
  4. Algae embedded in the mesoglea

Answer: 2. Endothelio muscular cells of gastrodermis

Question 77. If the body stalk of Hydra is cut transversely into several segments, then in these fragments, tentacles would regenerate

  1. At the end that was close to the hypostome
  2. At the end that was close to the basal disc
  3. Randomly at either ends of the cut segments
  4. In none of the segments

Answer: 1. At the end that was close to the hypostome

Question 78. The main function of interstitial cells is

  1. Replacement of lost cells
  2. Excretion
  3. Digestion
  4. Defense

Answer: 1. Replacement of lost cells

Question 79. The organ pipe coral is

  1. Tubipora
  2. Gorgonia
  3. Pennatula
  4. Mecmdrina

Answer: 1. Tubipora

Question 80. Which animal has been placed in the wrong habitat?

  1. Hydra vulgaris—sea water
  2. Hydra gangetica—freshwater
  3. Obelia—seawater
  4. Physalia—seawater

Answer: 1. Hydra vulgaris—seawater

NEET Biology practice mcq questions with solution

Question 81. Which of the following belongs to the phylum Ctenophora?

  1. Hormiphora
  2. Cestwn
  3. Beroe
  4. All of these

Answer: 4. All of these

Question 82. Which of the following are triploblastic, acoelomate with blind sac type of body plan, and parenchyma cells originating from mesoderm fill up the cavities of the body?

  1. Cnidarians
  2. Platyhelminthes
  3. Annelids
  4. Arthropoda

Answer: 2. Platyhelminthes

Question 83. In platyhelminthes, the excretory organs are

  1. Nephridia
  2. Nephrons
  3. Flame cells
  4. Archetypes

Answer: 3. Flame cells

Question 84. Tapeworm is placed in the class

  1. Cestoda
  2. Trematoda
  3. Sporozoa
  4. Turbellaria

Answer: 1. Cestoda

Question 85. Which one of the following stages in the life history of liver fluke infects the sheep?

  1. Miracidium
  2. Media
  3. Cercaria
  4. Metacercaria

Answer: 4. Metacercaria

Question 86. The correct sequence of various larvae in liver fluke is

  1. Miracidium, sporocyst, cercaria, redia, metacercaria
  2. Miracidium, sporocyst, redia, cercaria, metacercaria
  3. Sporocyst, redia, miracidium, cercaria, metacercaria
  4. Cercaria, sporocyst, redia, miracidium, metacercaria

Answer: 2. Miracidium, sporocyst, redia, cercaria, metacercaria

Question 87. A branched uterus containing fertilized capsules can be seen in tapeworms in

  1. Immature proglottid
  2. Mature proglottid
  3. Gravid proglottid
  4. Immediately below neck

Answer: 3. Gravid proglottid

Question 88. The mature proglottids having fertilized eggs in the uter¬us of tapeworm are regularly detached. This process is known as

  1. Apolysis
  2. Proliferation
  3. Strobilation
  4. Topolysis

Answer: 1. Apolysis

Question 89. Taenia saginata differs from Taenia solium in

  1. Absence of scolex hooks
  2. Scolex devoid of hooks and differences in secondary host
  3. The absence of scolex hooks and the presence of both male and female reproductive organs
  4. Presence of scolex hooks

Answer: 2. Scolex devoid of hooks and difference in a secondary host

Question 90. Fluke occurring in human beings is

  1. Fasciolopsis
  2. Fasciola
  3. Dugesis
  4. Male Ascaris

Answer: 1. Fasciolopsis

Question 91. Schistosoma is known as

  1. Blood fluke
  2. Chinese liver fluke
  3. Dog tapeworm
  4. Lung fluke

Answer: 1. Blood fluke

Question 92. A ladder-like nervous system with ventral nerve chords is present in

  1. Cnidaria
  2. Platyhelminthes
  3. Annelida
  4. Arthropoda

Answer: 2. Platyhelminthes

Question 93. The larva of Taenia solium is called

  1. Cysticercus
  2. Megascolex
  3. Planula
  4. Ephyra

Answer: 1. Cysticercus

Question 94. The alimentary canal is absent in

  1. Planaria
  2. Tapeworm
  3. Blood fluke
  4. Liver fluke

Answer: 2. Tapeworm

Question 95. Male Ascaris differs from the female in having

  1. Lips
  2. Amphids
  3. Pineal spicules
  4. Tail

Answer: 3. Pineal spicules

Question 96. The epidermis of Ascaris is

  1. Multicellular
  2. Syncytial
  3. Columnar
  4. Cuboidal

Answer: 2. Syncytial

Question 97. A free-living roundworm is

  1. Enterobius
  2. Rhabditis
  3. Dracunculus
  4. Trichinella

Answer: 2. Rhabditis

NEET Biology practice mcq questions with solution

Question 98. The most common worm in children is

  1. Ascaris lumbricoides
  2. Enterobius vermicularis
  3. Ancylostoma duodenals
  4. Trichinella sprialis

Answer: 2. Enterobius vermicularis

Question 99. Which is the infective stage of Ascaris for man?

  1. First larval stage
  2. Second larval stage (rhaditifonn larva)
  3. Encysted egg
  4. Adult

Answer: 2. Second larval stage (rhaditifonn larva)

Question 100. What name is given to the condition of testis in Ascaris?

  1. Monodelphic
  2. Didelphic
  3. Monarchic
  4. Alarchic

Answer: 3. Monarchic

Question 101. Leech belongs to the class

  1. Polychaeta
  2. Oligochaeta
  3. Hirudinea
  4. Archiannelida

Answer: 3. Hirudinea

Question 102. Aphrodite (sea mouse) belongs to class

  1. Hirudinea
  2. Oligochaeta
  3. Archiannelida
  4. Polychaeta

Answer: 4. Polychaeta

Question 103. Parapodia for locomotion are found in one of the following.

  1. Earthworm
  2. Hirudinaria
  3. Nereis
  4. Polygordius

Answer: 3. Nereis

Question 104. A temporary clitellum occurs during the breeding season in

  1. Pheretima
  2. Heteronereis
  3. Hirudinaria
  4. Aphrodite

Answer: 3. Hirudinaria

Question 105. The septal and pharyngeal nephridia open into the alimentary canal and are of enteronephric type. These are an adaptation for

  1. Conservation of water (osmoregulation)
  2. Conservation of heat
  3. Regulation of temperature
  4. Regulation of amino acids

Answer: 1. Conservation of water (osmoregulation)

Question 106. The blood of Pheretima is

  1. Blue with hemocyanin in corpuscles
  2. Blue with hemocyanin in plasma
  3. Red with hemocyanin in corpuscles
  4. Red with hemoglobin in plasma

Answer: 4. Red with hemoglobin in plasma

Question 107. Hirudinaria shows locomotion by

  1. Looping
  2. Swimming
  3. Both (1) and (2)
  4. Creeping

Answer: 3. Both (1) and (2)

Question 108. In earthworms, fertilization occurs in

  1. Oviduct
  2. Spermathecae
  3. Clitellum
  4. Cocoon

Answer: 4. Cocoon

Question 109. One of the following is considered as a connecting link between Annelida and arthropods.

  1. Peripatus
  2. Limulus
  3. Balanoglossus
  4. Sphenodon

Answer: 1. Peripatus

NEET Biology practice mcq questions with solution

Question 110. Peripatus breathes by

  1. Skin
  2. Gills
  3. Trachea
  4. Book lung

Answer: 3. Trachea

Question 111. Respiration in mollusca takes place by

  1. Body surface
  2. Gills or ctenidia
  3. Pulmonary sac
  4. All of these

Answer: 4. All of these

Question 112. A fold of dorsal body wall which covers the visceral mass in mollusks is called as

  1. Operculum
  2. Mantle
  3. Shell
  4. None of these

Answer: 2. Mantle

Question 113. The only segmented mollusca is

  1. Neopilina
  2. Teredo
  3. Nautilus
  4. Chiton

Answer: 1. Neopilina

Question 114. Which of the following is a terrestrial gastropod?

  1. Umax
  2. Urtio
  3. Sepia
  4. Octopus

Answer: 1. Umax

Question 115. Pearls are produced by

  1. Mytilus
  2. Doris
  3. Pecten
  4. Oslnea

Answer: 4. Oslnea

Question 116. The larva which is a characteristic of gastropods is

  1. Glochidium
  2. Auricularia
  3. Trochophore and veliger
  4. None of these

Answer: 3. Trochophore and veliger

Question 117. Octopus is commonly called

  1. Cuttlefish
  2. Devilfish
  3. Hagfish
  4. Silverfish

Answer: 2. Devilfish

Question 118. When chased by an enemy, a cloud of black ink is emitted by

  1. Nautilus
  2. Pila
  3. Loligo
  4. Palella

Answer: 3. Loligo

Question 119. Sepia and octopuses are marine animals and their swift commotion in water is affected by

  1. Adhering with the help of suckers to another moving animal
  2. The characteristic undulation of their lateral ins
  3. Lashing movement of their cephalic arms
  4. Expelling water in a jet through siphon

Answer: 4. Expelling water in a jet through a siphon

Question 120. Hemocyanin is a respiratory pigment found in

  1. Echinoderm
  2. Annelida
  3. Insects
  4. Architeuthis

Answer: 4. Architeuthis

Question 121. The pearls are formed of

  1. Calcium phosphate
  2. Calcium carbonate
  3. Magnesium trisilicate
  4. Calcium sulfate

Answer: 2. Calcium carbonate

Question 122. The respiratory organs of arthropods are

  1. Gills
  2. Book gills
  3. Book lungs, tracheal system
  4. All of these

Answer: 4. All of these

Question 123. Respiratory pigment in insects is

  1. Hemocyanin
  2. Hemoglobin
  3. Hemoerythrin
  4. None of these

Answer: 4. None of these

Question 124. A character common in spiders, cockroaches, and centipedes is

  1. Compound eyes
  2. Book lungs
  3. Green glands
  4. Jointed legs

Answer: 4. Jointed legs

Question 125. Which of the following is represented by the largest number of species?

  1. Insecta
  2. Protozoa
  3. Mammalia
  4. Aves

Answer: 1. Insecta

Question 126. The respiratory organs are book lungs in

  1. Arachnida
  2. Diplopoda
  3. Chilopoda
  4. Insecta

Answer: 1. Arachnida

Question 127. The head and thorax are fused to form cephalothorax in the members of class

  1. Arachnida
  2. Diplopoda
  3. Chilopoda
  4. Insecta

Answer: 1. Arachnida

Question 128. Class Arachnida is characterized by

  1. A pair each of pedipalpi and chelicerae
  2. Four pairs of legs
  3. Both (1) and (2)
  4. Three pairs of legs

Answer: 3. Both (1) and (2)

Question 129. Diplopods (for example, millipedes) differ from chilopods (for example, centipedes) in

  1. Occurrence of two pairs of legs on each abdominal segment
  2. Presence of pedipalpi
  3. Presence of chelicerae
  4. Tracheal system of respiration

Answer: 1. Occurrence of two pairs of legs on each abdominal segment

Question 130. Tick mark the wrong match.

  1. Housefly—Grub
  2. Mosquito—Wriggler
  3. Beetle—Grub
  4. Butterfly—Caterpillar

Answer: 1. Housefly—Grub

Question 131. Maggot is

  1. Larva of Anopheles Culex
  2. Pupa of housefly
  3. Larva of housefly
  4. Larva of dragonfly

Answer: 3. Larva of housefly

Question 132. Pasteurella pestis (causal agent of bubonic plague) is transmitted by

  1. Bed bug
  2. Rat flea
  3. Louse
  4. Mosquito

Answer: 2. Rat flea

Question 133. The life history of cockroaches belongs to

  1. Ametabola
  2. Hemimetabola
  3. Paurometabola
  4. Holometabola

Answer: 3. Paurometabola

Question 134. In houseflies, the mouth parts are specialized for

  1. Sponging liquid food
  2. Blood sucking
  3. Chewing
  4. Sucking flower juice

Answer: 1. Sponging liquid food

NEET Biology practice mcq questions with solution

Question 135. The metamorphosis of insects is regulated through

  1. Hemolymph
  2. Thyroxine
  3. Ecdysone
  4. All of these

Answer: 3. Ecdysone

Question 136. Yellow fever and dengue hemorrhagic fever is transmitted by

  1. Culex
  2. Aedes
  3. Anopheles
  4. Bedbug

Answer: 2. Aedes

Question 137. Adult Culex and Anopheles can be distinguished with the help of

  1. Mouthparts/color
  2. Sitting posture
  3. Antennae/wings
  4. Feeding habits

Answer: 2. Sitting posture

Question 138. In which of the following group of animals, larvae are bilaterally symmetrical and the adult are radially symmetrical?

  1. Molluscs
  2. Cnidarians
  3. Echinoderms
  4. Platyhelminthes

Answer: 3. Echinoderms

Question 139. Which of the following statements is incorrect for echinoderms?

  1. The most distinctive feature of echinoderms is the presence of a water vascular system, which is a part of the coelom.
  2. The main function of the water vascular system is loco¬motion and the capture of food.
  3. Echinoderms have no proper excretory system.
  4. They have a well-developed circulatory system.

Answer: 4. They have a well-developed circulatory system.

Question 140. Echinoderms are closely related to chordates due to the following characteristics.

  1. Tube-within-tube type of body plan, developed along deuterostomes evolutionary line
  2. They have enterocoelom
  3. They have mesodermal endoskeleton
  4. All of these

Answer: 4. All of these

Question 141. Which of the following is an incorrect match?

  1. Asterias—Bipinnaria larva
  2. Holothuria—Auricularia larva
  3. Antedon—Doliolaria
  4. Echinoidea—Trochophore

Answer: 4. Echinoidea—Trochophore

Question 142. Which of the following is the common ancestral larva of echinoderms, hemichordates, and chordates?

  1. Trochophore
  2. Dipleura
  3. Pluteus
  4. Nauplius

Answer: 2. Dipleura

Question 143. Aristotle’s lantern (masticatory apparatus) is found in

  1. Sea urchin
  2. Asturias
  3. Ophiothri.x
  4. Sea anemone

Answer: 1. Sea urchin

Question 144. Which phylum includes exclusively marine non-parasitic forms of animals?

  1. Porifern
  2. Cnidaria
  3. Molluscs
  4. Echinoderms

Answer: 4. Echinodcrms

Question 145. Sea cucumber belongs to the class

  1. Ophiuroidca
  2. Echinoidea
  3. Crinoidea
  4. Holothuroidea

Answer: 4. Holothuroidea

Question 146. Chordates possess

  1. Dorsal nerve cord placed below gut
  2. Single hollow nerve cord placed dorsal to gut
  3. Double ventral nerve cord
  4. Single solid and ventral nerve cord

Answer: 2. Single hollow nerve cord placed dorsal to gut

Question 147. The distinguishing feature of all chordates is

  1. A ventrally placed nerve cord
  2. A water vascular system
  3. A chitinous exoskeleton
  4. Notochord

Answer: 4. Notochord

Question 148. Salpa and Doliolum belong to

  1. Hemichordata
  2. Cephalochordata
  3. Urochordata
  4. Protochordate

Answer: 3. Urochordata

Question 149. Chordates are distinguished from non-chordates by the presence of

  1. Brain
  2. Dorsal tubular hollow nerve cord
  3. Ventral nerve cord
  4. Dorsal solid nerve cord

Answer: 2. Dorsal tubular hollow nerve cord

Question 150. Which of the following animals belongs to Urochordata?

  1. Herdmania
  2. Balanoglossus
  3. Amphioxus
  4. Petromyzon

Answer: 1. Herdmania

Question 151. Which of the following animals is devoid of notochord and nerve cord in its adult stage?

  1. Herdmania (Ascidian)
  2. Branchiostoma (Amphioxus)
  3. Assymetron
  4. All of the above

Answer: 1. Herdmania (Ascidian)

Question 152. Which of the following characters is shared by all chordates at some stage of life?

  1. Notochord
  2. Dorsdal tubular nerve cord
  3. Pharyngeal gill slits
  4. All of the above

Answer: 4. All of the above

Question 153. Prochordates lack

  1. Cranium and vertebral column
  2. Jaws and vertebral column
  3. Paired appendages
  4. All of the above

Answer: 4. All of the above

Question 154. Notochord persists in the adults of

  1. Protochordatcs
  2. Agnatha
  3. Chondrichthyes
  4. Osteichthyes

Answer: 1. Protochordatcs

Question 155. Which of the following groups of characters is present in all chordates in some or other stage in their life?

  1. Mammary glands, hairs, and gill slits
  2. Notochord, gill slits, and dorsal tubular nervous system
  3. Notochord, scales, and dorsal tubular nervous system
  4. Gill slits, vertebral column, and notochord

Answer: 2. Notochord, gill slits, and dorsal tubular nervous system

Question 156. Retrogressive metamorphosis occurs in

  1. Balanoglossus (Tomaria larvae)
  2. Amphioxus
  3. Ascidian tadpole larva of Herdmania
  4. Glossobalanus

Answer: 3. Ascidian tadpole larva of Herdmania

Question 157. The vertebral column is a modified

  1. Nerve cord
  2. Notochord
  3. Umbilical cord
  4. Urochordata

Answer: 2. Notochord

Question 158. In chordates, basically, the pharynx is

  1. Perforated
  2. Non-perforated
  3. Present in the gut of the larva
  4. A source of thyroxin which controls metamorphosis

Answer: 1. Perforated

Question 159. Which of the following larvae after metamorphosis mi¬grates from river to ocean?

  1. Ammocoete larvae of lampreys (Cyclostoma)
  2. Trochophore larvae of molluscs
  3. Ascidian tadpole larva oiHerdmania
  4. Dipleura larva

Answer: 1. Ammocoete larvae of lampreys (Cyclostoma)

Question 160. Petromyzon belongs to the class

  1. Chondrocytes
  2. Cyclostomata
  3. Osteichthyes
  4. None of these

Answer: 2. Cyclostomata

Question 161. In which of the following fishes, electric organs are present which are modified musculature between eye and nostrils?

  1. Torpedo (electric ray)
  2. Scoliodon (dogfish)
  3. Trygon (sting ray)
  4. Prist is (sawfish)

Answer: 1. Torpedo (electric ray)

Question 162. Gill slits in chondrichthyes are

  1. Uncovered
  2. Covered by operculum
  3. Absent
  4. Only sometimes covered

Answer: 1. Uncovered

Question 163. Scales in cartilaginous fishes are

  1. Cycloid
  2. Ctenoid
  3. Placoid
  4. Leptoid

Answer: 3. Placoid

NEET Biology practice mcq questions with solution

Question 164. Which of the following is young alive?

  1. Hippocampus
  2. Shark (Scoliodon)
  3. Anabas
  4. Trygon

Answer: 2. Shark (Scoliodon)

Question 165. Air bladder is present in

  1. Cartilaginous fishes
  2. Bony fishes
  3. Starfish
  4. Electric Ray

Answer: 2. Bony fishes

Question 166. Lateral line organs do not occur in

  1. Cartilaginous fishes
  2. Bony fishes
  3. Amphibian larvae
  4. Reptiles

Answer: 4. Reptiles

Question 167. The peculiarity of fish heart is that it has

  1. All venous blood
  2. All arterial blood
  3. Partly venous and partly arterial blood
  4. No blood at all

Answer: 1. All venous blood

Question 168. Heterocercal tall, placoid scales are found in one of the following

  1. Rohu
  2. Neoceratodus
  3. Scoliodon
  4. Anguilla

Answer: 3. Scoliodon

Question 169. Gambusia is a

  1. Pest on fishes
  2. Pathogenic fish
  3. Parasitic fish
  4. Fish predator of mosquito larvae

Answer: 4. Fish predator of mosquito larvae

Question 170. Which one of the following fishes does not belong to class osteichthyes?

  1. Hippocampus
  2. Labeo
  3. Torpedo
  4. Exocoetus

Answer: 3. Torpedo

Question 171. In which of the following fishes, the pectoral fin is large and modified to use for gliding several meters in the air, as the fish leaps out?

  1. Exocoetus
  2. Anabas
  3. Echeneis
  4. Laboo

Answer: 1. Exocoetus

Question 172. In which of the fishes, the male shows parental care and has a brood pouch?

  1. Anabas
  2. Laboo
  3. Hippocampus
  4. Sturgeon

Answer: 3. Hippocampus

Question 173. The oldest living fish is

  1. Anabas
  2. Coelacanth
  3. Diodon
  4. Surgeon

Answer: 2. Coelacanth

Question 174. Fishes have kidneys of

  1. Pronephric type
  2. Mesonephric types
  3. Metanephric type
  4. Nephridial Type

Answer: 2. Mesonephric types

Question 175. Which one of the following is a true fish?

  1. Crayfish
  2. Cuttlefish
  3. Flying fish
  4. Jellyfish

Answer: 3. Flying fish

Question 176. An anadromous fish migrates from

  1. Rivers to sea, for example, Anguilla
  2. Rivers to estuary
  3. Sea to rivers, for example, Hilsa, Salmon
  4. Deep sea to surface waters

Answer: 3. Sea to rivers, for example, Hilsa, Salmon

Question 177. A catadromous fish migrates from

  1. Rivers to sea
  2. Rivers to estuary
  3. Sea to rivers
  4. Deep sea to surface waters

Answer: 1. Rivers to sea

Question 178. Which one of the following is a limbless amphibian?

  1. Salamandra (Urodela)
  2. Ichthyophis(Apoda)
  3. Necturus (Urodela)
  4. Hyla(Anura)

Answer: 2. Ichthyophis(Apoda)

Question 179. Salamandra is a

  1. Tailed amphibian
  2. Tail-less amphibian
  3. Limbless amphibian
  4. Reptile

Answer: 1. Tailed amphibian

Question 180. The excretory product of a newly hatched tadpole of frog is

  1. NH3
  2. Uric acid
  3. NH3 and urea
  4. Urea, amino acids, and NH3

Answer: 1. NH3

Question 181. Which one of the following is a poisonous amphibian?

  1. Bufo marinus
  2. Hyla versicolor
  3. Ichthyophis
  4. Rana tigrina

Answer: 2. Hyla versicolor

NEET Biology MCQ

Question 182. A frog lives in water or near water because

  1. It can gel its food easily in water
  2. Its hindlimbs are webbed and help in swimming
  3. It lays eggs in water
  4. It can see through its transparent eyelids while swimming

Answer: 3. It lays eggs in water

Question 183. The larva of Ambyostoma is

  1. Ascidian
  2. Axolotl
  3. Tadpole
  4. Trochophore

Answer: 2. Axolotl

Question 184. Male frogs can croak louder than females because being/ having

  1. Larger in size
  2. Larger sound box
  3. Stronger
  4. Larger vocal sacs

Answer: 4. Larger vocal sacs

Question 185. The success of reptiles as truly land animals was due to

  1. Development of internal fertilization
  2. The presence of an amnion embryonic membrane which encloses the embryo and provides a watery environment for development
  3. Respiration only through the lungs, which is improved by the development of ribs
  4. All of these

Answer: 4. All of these

Question 186. Which of the following are poikilothermal animals with a single occipital condyle and 12 pairs of cranial nerves?

  1. Aves
  2. Reptiles
  3. Mammals
  4. Amphibia

Answer: 2. Reptiles

Question 187. Which is the only poisonous lizard of the world?

  1. Ophiosaurus
  2. Varanus
  3. Heloderma
  4. Draco

Answer: 3. Heloderma

Question 188. The largest lizard is

  1. Chameleon
  2. Helodenna
  3. Ophiosaurus
  4. Varanus

Answer: 4. Varanus

Question 189. The urinary bladder is absent in

  1. Chameleon
  2. Snake
  3. Snake and crocodile
  4. Wall lizard

Answer: 3. Snake and crocodile

Question 190. The study of snakes is called

  1. Ichthyology
  2. Herpetology
  3. Herpetology
  4. Entomology

Answer: 2. Serpentology

Question 191. The reptile without teeth is

  1. Lizards
  2. Heloderma
  3. Chelonia
  4. Alligators

Answer: 3. Chelonia

NEET Biology MCQ

Question 192.  Which one of the following is a non-poisonous snake?

  1. Cobra (Naja naja)
  2. Ajgar {Python)
  3. Krait {Bungarus)
  4. Viper {Viper russelli)

Answer: 2. Ajgar {Python)

Question 193. Which of the following is not a true snake?

  1. Tree snake
  2. Glass snake
  3. Blind snake
  4. Sea snake

Answer: 2. Glass snake

Question 194. The cobra {Naja naja) can be distinguished by the presence of

  1. Agile habit
  2. Black color
  3. Hood
  4. Hood and third largest supra labials

Answer: 4. Hood and third largest supra labials

Question 195. Which one of the following pair of snakes is viviparous?

  1. Krait and viper
  2. Cobra and krait
  3. Hydrophis and Vipera russelli
  4. Natrix and python

Answer: 3. Hydrophis and Vipera russelli

Question 196. Benadryl and antisera are used to

  1. Control malaria
  2. Counteract the effect of hemotoxins
  3. Cure sleeping sickness
  4. Counteract the bite of mad dog

Answer: 2. Counteract the effect of hemotoxins

Question 197. The largest Indian poisonous snake is

  1. Blue krait
  2. Cobra
  3. King cobra
  4. Python

Answer: 3. King cobra

Question 198. Which one is the longest snake?

  1. Cobra
  2. Krait
  3. Python
  4. Rat snake

Answer: 3. Python

Question 199. Krait (Bungarus) can be differentiated from other snakes by its

  1. Hairy body
  2. Size
  3. Shield-like scales on the head
  4. Vertebral scales

Answer: 4. Vertebral scales

Question 200. Crocodiles, fish, and frogs on one hand and squirrels and crows on the other differ in the following.

  1. The former have four appendages, the latter have only two.
  2. The body temperature of the former changes with environmental temperature, the temperature of the latter remains more or less constant.
  3. The former undergo metamorphosis, the latter do not.
  4. The former are oviparous, the latter are viviparous.

Answer: 2. The body temperature of the former changes with environmental temperature, the temperature of the latter remains more or less constant.

Question 201. Which of the following group of animals is homeothermal, has single occipital condyle, 12 pairs of cranial nerves, pneumatic bones, and a four-chambered heart?

  1. Amphibia
  2. Aves
  3. Reptilia
  4. Mammalia

Answer: 2. Aves

Question 202. The feathers of the birds aeration of waterproof due to the oily secretion of

  1. Cutaneous gland
  2. Preen gland
  3. Sudorific gland
  4. None of these

Answer: 2. Preen gland

Question 203. Pneumatic bones occur in

  1. Amphibians
  2. Reptiles
  3. Birds
  4. Mammals

Answer: 3. Birds

Question 204. Right ovary, right oviduct, and urinary bladder have atrophied in which one of the following?

  1. Kiwi
  2. Pigeon
  3. Kingfisher
  4. All of these

Answer: 3. Kingfisher

Question 205. Air sacs are found only in

  1. Aquatic birds
  2. Ground birds
  3. All birds
  4. No bird

Answer: 3. All birds

Question 206. Which of the following bones is present only in birds?

  1. Axis vertebra
  2. Atlas vertebra
  3. Ear ossicles
  4. Furcula

Answer: 4. Furcula

Question 207. The beak in birds is toothed in

  1. Ostrich
  2. Kiwi
  3. Archant

Answer: 3. Archaeont

Question 208. Which one of the following birds has recently become extinct?

  1. Archaeopteryx
  2. Archaeomis
  3. Dodo
  4. The great Indian Island

Answer: 3. Dodo

Question 209. The largest living bird is

  1. Struthio (Ostrich)
  2. Aptenodytes (Penguin)
  3. Phonicopterus (Flamingo)
  4. Aepyomis (Giant elephant bird)

Answer: 1. Struthio (Ostrich)

Question 210. Which of the following statements is incorrect about birds?

  1. The two clavicles and one interclavicle form a V-shaped bone called as furcula.
  2. The eyes of birds are peculiar due to the presence of pectin.
  3. Carinatae or flying birds have sternum with keel.
  4. In birds, the left ovary and oviduct is atrophied.

Answer: 4. In birds the left ovary and oviduct is atrophied.

Question 211. Which one of the following is a metatherian mammal?

  1. Echidna
  2. Kangaroo
  3. Shrew
  4. Pangolin

Answer: 2. Kangaroo

Question 212. Which one of the following characters is not typical of the class Mammalia?

  1. The codont dentition
  2. Alveolar lungs
  3. Ten pairs of cranial nerves
  4. Seven cervical vertebrae

Answer: 3. Ten pairs of cranial nerves

Question 213. Which of the following animals has a diaphragm between the thorax and abdomen?

  1. Frog
  2. Lizard
  3. Pigeon
  4. Whale

Answer: 4. Whale

Question 214. In which of the following orders of class Mammalia, the animals can fly?

  1. Lagomorpha
  2. Chiroptera
  3. Rodentia
  4. Cetacea

Answer: 2. Chiroptera

Question 215. The tusks of elephants are

  1. Incisors
  2. Canines
  3. Molars
  4. Premolars

Answer: 1. Incisors

Question 216. Testes are internal and canines and premolars are absent in one of the following?

  1. Rabbit
  2. Elephant
  3. Whale
  4. Goat

Answer: 2. Elephant

Question 217. Which one of the following is a tailless primate?

  1. Tarsier
  2. Lemur
  3. Rhesus monkey
  4. Gorilla

Answer: 4. Gorilla

Question 218. Monotreme is a group of animals which includes

  1. Fishes with single gill aperture
  2. Insects with a single pair of spiracles
  3. Mammals with a single cloaca
  4. Protozoa with a single flagellum

Answer: 3. Mammals with a single cloaca

Question 219. Milk glands are found in

  1. All vertebrates
  2. All mammals
  3. All placental mammals
  4. All prototherians only

Answer: 2. All mammals

NEET Biology MCQ

Question 220. The largest life span in animals is of

  1. Tortoise
  2. Snake
  3. PaiTot
  4. Gorilla

Answer: 1. Tortoise

Question 221. The whale is a mammal because

  1. Its heart has four chambers
  2. It is aquatic with a streamlined body
  3. It lays egg and produces milk
  4. The diaphragm is found between the thorax and abdomen

Answer: 4. Diaphragm is found between thorax and abdomen

Question 222. Eggs of egg-laying mammals are

  1. Macrolecithal
  2. Alecithal
  3. Isolecithal
  4. Telolccithal

Answer: 1. Macrolecithal

Question 223. Which of the following groups belongs to Deuterostome?

  1. Annelida, Arthropoda, Mollusca
  2. Echinodermata, Hemichordata, Chordata
  3. Annelida, Mollusca, Chordata
  4. Arthropoda, Mollusca, Echinodermata

Answer: 2. Echinodermata, Hemichordata, Chordata

Question 224. In which phylum, nerve cells are found but nerves are absent?

  1. Porifera
  2. Coelenterata
  3. Platyhelminthes
  4. Nematohelminthes

Answer: 2. Coelenterata

Question 225. Classification of sponges is primarily based on the

  1. Body organization
  2. Body plan
  3. Skeleton
  4. Canal system

Answer: 3. Skeleton

Question 226. In crustaceans, respiration takes place by

  1. Gills
  2. Book lungs
  3. Ctenidia
  4. Trachea

Answer: 1. Gills

Question 227. Ctenophora shows affinities with

  1. Cnidaria
  2. Aschehelmenth
  3. Cephalopoda
  4. Turbelaria

Answer: 1. Cnidaria

Question 228. Which of the following molluscs is formed by a larva which has torsion?

  1. Lamelledens
  2. Pila
  3. Sepia
  4. Octopus

Answer: 2. Pila

Question 229. Solenocytes and Nephridia are respectively found in

  1. Platyhelminth and Annelids
  2. Annelids and Nematoda
  3. Ccnidaria and Mollusca
  4. Mollusca and Echinodermata

Answer: 1. Platyhelmenth and Annelids

Question 230. Arthropoda is characterized by

  1. Chitinous exoskeleton, segmentation, and jointed appendages
  2. Hairs, exoskeleton, and three pairs of legs.
  3. Exocutaneous scales, metamerism, one pair antennae
  4. One pair of chelicerae, one pair of pedipalp, and one pair of antennae

Answer: 1. Chitinous exoskeleton, segmentation, and jointed appendages

Question 231. Chitin exoskeleton is found in

  1. Cockroach
  2. Ascaris
  3. Nematoda
  4. None

Answer: 1. Cockroach

Question 232. Hemocoel is found in

  1. Hydra
  2. Ascaris
  3. Earthworm
  4. Cockroach

Answer: 4. Cockroach

Question 233. Metamerism is a characteristicof

  1. Ascaris
  2. Pheretima
  3. Periplaneta
  4. Hydra

Answer: 2. Pheretima

Question 234. Radial symmetry is found in

  1. Planaria
  2. Taenia
  3. Fasciola
  4. Sea anemone

Answer: 4. Sea anemone

Question 235. Which of the following is pseudocoelomate?

  1. Hydra
  2. Periplaneta
  3. Ascaris
  4. Pheretima

Answer: 3. Ascaris

Question 236. Botryoidal tissue is found in

  1. Porifera
  2. Acanthocephala
  3. Annelida
  4. Echinodermata

Answer: 4. Echinodermata

Question 237. In which of the following animals of Echinodermata, arms, spines, and pedicellariae are absent?

  1. Sea cucumber
  2. Sea lily
  3. Sea star
  4. Sea urchin

Answer: 1. Sea cucumber

Question 238. The canal system is the specialty of which phylum?

  1. Porifera
  2. Coelenterata
  3. Echinodermata
  4. None

Answer: 1. Porifera

Question 239. Enzyme hirudin is present in the saliva of

  1. Leech
  2. Earthworm
  3. Scorpion
  4. Cobra

Answer: 1. Leech

Question 240. Similarity in Ascaris lumbricoides and Anopheles stephensi is

  1. Sexual dimorphism
  2. Metamerism
  3. Anaerobic respiration
  4. Endoparasitism

Answer: 1. Sexual dimorphism

Question 241. Which of the following animals have scattered cells with cell-tissue grade organization?

  1. Sponge
  2. Hydra
  3. Liver fluke
  4. Ascaris

Answer: 2. Hydra

Question 242. In Hydra, the waste material of food digestion and nitrogenous waste material are removed, respectively, from

  1. Mouth and mouth
  2. Body wall and body wall
  3. Mouth and body wall
  4. Mouth and tentacles

Answer: 3. Mouth and body wall

Question 243. In protozoans such as Amoeba and Paramecium, an organ is found for osmoregulation which is

  1. Contractile vacuole
  2. Mitochondria
  3. Nucleus
  4. Food vacuole

Answer: 1. Contractile vacuole

Question 244. In which of the animals, a dimorphic nucleus is found?

  1. Amoeba proteus
  2. Trypanosoma ambient
  3. Plasmodium vivax
  4. Paramecium caudatum

Answer: 4. Paramecium caudatum

Question 245. Given below are four matchings of an animal and its kind of respiratory organ.

  1. Silverfish—Trachea
  2. Scorpion—Book lung
  3. Sea squirt—Pharyngeal gills
  4. Dolphin—Skin

Answer: 2. Scorpion—Book lung

Question 246. The correct matchings are

  1. (1) and (4)
  2. (1), (2), and (3)
  3. (2) and (4)
  4. (3) and (4)

Answer: 2. (1), (2), and (3)

Question 247. Which one of the following is a matching pair of an ani¬mal and a certain phenomenon it exhibits

  1. Pheretimc—Sexual dimorphism
  2. Musca complete metamorphosis
  3. Chameleon—Mimicry
  4. Taenia—Polymorphism

Answer: 2. Musca complete metamorphosis

Question 248. During its life cycle. Fasciola hepatica [liver fluke] infects its intermediate host and primary host at the following larval stages, respectively,

  1. Redia and miracidium
  2. Cercaria and redia
  3. Metacercaria and cercaria
  4. Miracidium and metacercaria

Answer: 4. Miracidium and metacercaria

Question 249. Sycon belongs to a group of animals, which are best described as

  1. Unicellular or acellular
  2. Multicellular without any tissue organization
  3. Multicellular with a gastrovascular system
  4. Multicellular having tissue organization, but no body cavity

Answer: 2. Multicellular without any tissue organization

Question 250. The animals with bilateral symmetry in young stage and radial pentamerous symmetry in the adult stage belong to the phylum

  1. Mollusca
  2. Cnidaria
  3. Echinodermata
  4. Annelida

Answer: 3. Echinodermata

Question 251. In Arthropoda, head and thorax are often fused to form cephalothorax, but in which one of the following classes is the body divided into head, thorax, and abdomen?

  1. Myriapoda
  2. Crustacea
  3. Arachnida and Crustacea
  4. Insecta

Answer: 4. Insecta

Question 252. Which one of the following is not correctly matched?

  1. Culex pipiens—Filariasis
  2. Aedes aegypti—Yellow fever
  3. Anopheles culifacies—Leishmaniasis
  4. Glossina palpalis—Sleeping sickness

Answer: 3. Anopheles culifacies—Leishmaniasis

Question 253. In contrast to Annelids, Platyhelminthes show-

  1. Absence of body cavity
  2. Presence of pseudocoel
  3. Radial symmetry
  4. Bilateral symmetry

Answer: 1. Absence of body cavity

Question 254. Which of the following unicellular organisms has a macronucleus for trophic function and one or more micronuclei for reproduction?

  1. Trypanosoma
  2. Paramecium
  3. Euglena
  4. Amoeba

Answer: 2. Paramecium

Question 255. The evolutionary history of an organism is known as

  1. Ontogeny
  2. Phylogeny
  3. Ancestry
  4. Paleontology

Answer: 2. Phylogeny

Question 256. What is common about Trypanosoma, Noctihtca, Mooocyst, and Giardia1

  1. These are all parasites.
  2. These are all unicellular protists.
  3. They have flagella.
  4. They produce spores.

Answer: 2. These are all unicellular protists.

Question 257. Which one of the following is a matching set of a phylum and its three examples?

  1. Porifera: Spongilla, Euplectella, Pennatula
  2. Cnidaria: Bonellia, Physalia, Aurelia
  3. Platyhelminthes: Planaria, Enterobius, Schistosoma
  4. Mollusca: Loligo, Teredo, Octopus

Answer: 4. Mollusca: Loligo, Teredo, Octopus

Question 258. Metameric segmentation is the characteristic of

  1. Mollusca and Chordata
  2. Platyhelminthes and Arthropoda
  3. Echinodermata and Annelida
  4. Annelida and Arthropoda

Answer: 4. Annelida and Arthropoda

Question 259. Two common characteristics found in centipedes, cockroaches, and crabs are

  1. Book lungs and antennae
  2. Compound eyes and anal cerci
  3. Jointed legs and chitinous exoskeleton
  4. Green gland and tracheae

Answer: 3. Jointed legs and chitinous exoskeleton

Question 260. Biradial symmetry and lack of cnidoblasts are the characteristics of

  1. Hydra and starfish
  2. Starfish and sea anemone
  3. Ctenophora and Beroe
  4. Aurelia and Paramoecium

Answer: 3. Ctenophora and Beroe

Question 261. Which one of the following has an open circulatory system?

  1. Octopus
  2. Pheretima
  3. Periplaneta
  4. Hirudinaria

Answer: 3. Periplaneta

Question 262. Biological organization starts with

  1. Atomic-level
  2. Submicroscopic molecular level
  3. Cellular level
  4. Organismic level

Answer: 2. Submicroscopic molecular level

Question 263. Which one of the following is a matching pair of a body feature and the animal possessing it?

  1. Ventral heart—Scorpion
  2. Post-anal tail—Octopus
  3. Ventral central nervous system—Leech
  4. Pharyngeal gill slits absent in embryo—Chamaeleon
  5. Answer: 3. Ventral central nervous system—Leech

Question 264. What is true about Nereis, Scorpion, cockroach, and silverfish?

  1. They all belong to the same phylum.
  2. They all have jointed paired appendages.
  3. They all possess dorsal hearts.
  4. None of them is aquatic.

Answer: 3. They all possess a dorsal heart.

Question 265. Which one of the following pairs is mismatched?

  1. Bolnbyx mart—Silk
  2. Puaglobosa—Pearl
  3. Apis indica—Honey
  4. Kenia lacca—Lac

Answer: 2. Pu globosa—Pearl

Question 266. Which one of the following is NOT a characteristic of phylum annelid?

  1. Closed circulatory system
  2. Segmentation
  3. Pseudococlom
  4. Ventral nerve cord

Answer: 3. Pseudococlom

Question 267. Which one of the following phyla is correctly matched with its two general characteristics?

  1. Arthropoda: The body divided into head, thorax, and abdomen, and respiration by tracheae
  2. Chordata: Notochord at some stage and separate anal and urinary openings to the outside
  3. Echinodermata: Pentamerous radial symmetry and mostly internal fertilization
  4. Mollusca: Normally oviparous and develops through a trochophore or veliger larva

Answer: 4. Mollusca: Normally oviparous and develops through a trochophore or veliger larva

Question 268. Ascaris is characterized by the

  1. The absence of true coelom but presence of metamerism
  2. The presence of neither true coelom nor metamerism
  3. The presence of true coelom but the absence of metamerism
  4. Presence of true coelom and metamerism

Answer: 2. Presence of neither true coelom nor metamerism

Question 269. Which one of the following group of three animals each is correctly matched with their one characteristic morphological feature?

Answer: 3

Question 270. The middle layer in the body wall of Porifera is

  1. Modern
  2. Mesenchyme
  3. Mesoglea
  4. Mesentery

Answer: 2. Mesenchyme

Question 271. The medusa of Obclia is

  1. Carnivorous
  2. Herbivorous
  3. Detritus feeder
  4. Omnivorous

Answer: 1. Carnivorous

Question 272. The sense organ of Aurelia is

  1. Tenlitta
  2. Tentaculocyst
  3. Nematocyst
  4. Otolith

Answer: 2. Tentaculocyst

Question 273. Characteristics of class Crustacea are

  1. Cephalothorax, biramous appendages, and gills
  2. Head and thorax, book lungs, and chitinous exoskeleton
  3. Cephalothorax, book lungs, and chitinous exoskeleton
  4. Head and thorax, biramous appendages, and book lungs

Answer: 1. Cephalothorax, biramous appendages, and gills

Question 274. After drying, a bath sponge contains

  1. Mold fast
  2. Tentacles
  3. Spicules
  4. Spongin fiber

Answer: 4. Spongin fiber

Question 275. Which organism resides in lymph nodes?

  1. Taenia
  2. Wuchcreria
  3. Plasmodium
  4. Diplococcus

Answer: 2. Wuchcreria

Question 276. Adult Wuchcreria bancrofti attacks

  1. Nervous system
  2. Lymph vessels
  3. Muscular system
  4. Blood vessels

Answer: 2. Lymph vessels

Question 277. Just as Xenopsylla is for Yersenia pestis, so is

  1. Glossina palpalis to Wuchcreria bancrofti
  2. Culex to Plasmodium falciparum
  3. Homo sapiens to Taenia solium
  4. Phlebotomus to Leishmania donovani

Answer: 4. Phlebotomus to Leishmania donovani

Question 278. Which one of the following features is common in silverfish, scorpions, dragonflies, and prawns?

  1. Three pairs of legs and a segmented body
  2. Chitinous cuticle and two pairs of antennae
  3. Jointed appendages and chitinous exoskeleton
  4. Cephalothorax involves

Answer: 3. Jointed appendages and chitinous exoskeleton

Question 279. Anus is absent in

  1. Fasciola
  2. Pheretima
  3. Periplaneta
  4. Unio

Answer: 1. Fasciola

Question 280. Pick up the correctly matched pair.

  1. Water vascular system—Sponge
  2. Blubber—Kangaroo
  3. Marsupium—Platypus
  4. Flame cell—Flatworm

Answer: 4. Flame cell—Flatworm

Question 281. Trochophore larva occurs in

  1. Annelida and Porifera
  2. Coelenterata and Annelida
  3. Mollusca and Coelenterata
  4. Annelida and Mollusca

Answer: 4. Annelida and Mollusca

Question 282. Green glands found in some Arthropods take part in

  1. Excretion
  2. Respiration
  3. Digestion
  4. Both (1) and (2)

Answer: 1. Excretion

Question 283. In sponges, there is

  1. Radial symmetry
  2. Present a true coelom
  3. A single exit and a number of mouths
  4. A single mouth and a number of exist

Answer: 3. A single exit and a number of mouths

Question 284. Capitalization is absent in

  1. Molluscs
  2. Arthropods
  3. Both (1) and (2)
  4. Echinoderms

Answer: 4. Echinoderms

Question 285. A radially symmetrical diploblastic animal is

  1. Roundworm
  2. Earthworm
  3. Hydra
  4. Liver fluke

Answer: 3. Hydra

Question 286. Antcdon is a member of the class

  1. Echinoidea
  2. Asteroidea
  3. Crinoidca
  4. Ophiuroidea

Answer: 3. Crinoidca

Question 287. A sponge harmful to the oyster industry is

  1. Spongilla
  2. Euspongia
  3. Ilyalonema
  4. Cliona

Answer: 4. Cliona

Question 288. What is the name of the book written by Aristotle?

  1. Historia Animalium
  2. Historic Naturelle
  3. Systema Naturae
  4. Philosophic Zoologique

Answer: 1. Historia Animalium

Question 289. Who is the “father of zoology”?

  1. Aristotle
  2. Theophrastus
  3. Lazzaro Spallanzani
  4. Carolus Linnaeus

Answer: 1. Aristotle

Question 290. In which phylum is the water vascular system found?

  1. Protozoa
  2. Arthropoda
  3. Porifera
  4. Echinodermata

Answer: 4. Echinodermata

Question 291. Which of the following does not belong to the phylum Coelenterate?

  1. Sea pen
  2. Sea feather
  3. Sea cucumber
  4. Sea fun

Answer: 3. Sea cucumber

Question 292. A commercial bath sponge is called

  1. Euspongia
  2. Spongilla
  3. Euplectella
  4. Cliona

Answer: 1. Euspongia

Question 293. Prokaryotes are included in the kingdom

  1. Moncra
  2. Protista
  3. Protozoa
  4. Basidiomycetes

Answer: 1. Moncra

Question 294. Single-celled eukaryotes arc included in

  1. Protista
  2. Fungi
  3. Archaca
  4. Monera

Answer: 1. Protista

Question 295. “Taxa” differs from “taxon” due to this being

  1. A higher taxonomic category than taxon
  2. A lower taxonomic category than taxon
  3. The singular of taxon
  4. The plural of taxon

Answer: 4. The plural of taxon

Question 296. Which one of the following groups of animals is bilaterally symmetrical?

  1. Sponges
  2. Ctenophores
  3. Coelenterates (Cnidarians)
  4. Aschelminthes (Roundworms)

Answer: 4. Aschelminthes (Roundworms)

Question 297. Deuterostome condition and indeterminate radial cleavage are characteristics of

  1. Chordates and arthropods
  2. Chordates and echinoderms
  3. Arthropods and echinoderms
  4. Chordates, arthropods, and annelids

Answer: 2. Chordates and echinoderms

Question 298. Which one of the following statements about all the four of Spongilla, leech, dolphin, and penguin is correct?

  1. Spongilla has special collared cells called choanocytes, not found in the remaining three.
  2. The penguin is homoeothermic, while the remaining three are poikilothermic.
  3. Leech is a freshwater form, while all others are marine.
  4. All are bilaterally symmetrical.

Answer: 1. Spongilla has special collared cells called choanocytes, not found in the remaining three.

Question 299. Which of the following statements is/are correct with regard to Deuterostomes?

  1. The blastopore develops into anus in adult.
  2. The blastopore develops into a mouth in adult.
  3. Cleavage is radial and indeterminate.
  4. Cleavage is spiral and determinate.

 

  1. (1) and (3)
  2. (1) and (2)
  3. (2) and (3)

Answer: 1. (1) and (3)

Question 300. Choose the animal that exhibits the following characteristics:

  1. Marine habitat.
  2. Bilateral symmetry and cephalization.
  3. Hemocoel as the principal body cavity.
  4. Eyes similar to that of vertebrates.

 

  1. Silverfish
  2. Dogfish
  3. Jellyfish
  4. Uttle fish

Answer: 4. Uttle fish

Question 301. The plane that divides the body into right and left haves is called

  1. Transverse
  2. Frontal
  3. Sagittal
  4. Radial

Answer: 3. Sagittal

Question 302. The main basis of the classification of Protozoa is

  1. Size
  2. Shape
  3. locomotory device
  4. Number of nuclei

Answer: 3. locomotory device

Question 303. Which class of protozoa includes all parasitic forms?

  1. Mastigophora
  2. Ciliata
  3. Sporozoa
  4. Sarcodina

Answer: 3. Sporozoa

Question 304. The infective stage of Entamoeba histolytic is called

  1. Trophozoite
  2. Precystic form
  3. Metacyslic form
  4. Quadrinucleate cyst

Answer: 4. Quadrinucleate cyst

Question 305. When a freshwater protozoan is placed in marine water.

  1. The contractile vacuoles become bigger in size
  2. The number of contractile vacuoles increases
  3. The contractile vacuoles disappear
  4. The contractile vacuoles remain unchanged

Answer: 3. The contractile vacuoles disappear

Question 306. Which of the following is a flagellated protozoan?

  1. Amoeba
  2. Entamoeba
  3. Plasmodium
  4. Trypanosoma

Answer: 4. Trypanosoma

Question 307. The type of nutrition present in Entamoeba is

  1. Saprozoic
  2. Parasitic
  3. Autotrophic
  4. None of these

Answer: 2. Parasitic

Question 308. Sponges possess

  1. No tissues
  2. Epithelial tissues only
  3. Epithelial and connective tissues only
  4. All four types of tissues

Answer: 1. No tissues

Question 309. Which one of these is referred to as the Venus flower basket?

  1. Euplectella
  2. Sycon
  3. Cliona
  4. Spongilla
  5. Proterion

Answer: 1. Euplectella

Question 310. Which is not correct for sponges?

  1. Internal fertilization
  2. External fertilization
  3. Gemmule formation
  4. Gametes are formed from epidermal cells

Answer: 2. External fertilization

Question 311. One of the following is not a characteristic feature of sponges.

  1. Presence of Ostia
  2. Indirect development
  3. Intracellular digestion
  4. Body supported by chitin
  5. Cellular level of organization

Answer: 4. Cellular level of organization

Question 312. Digestion in Hydra takes place within

  1. Pelvic cavity
  2. Abdominal
  3. Gastrovascular cavity
  4. Pericardial cavity

Answer: 3. Gastrovascular cavity

Question 313. Budding as the normal inode of asexual reproduction occurs in

  1. Hydra and starfishes
  2. Hydra and Sponges
  3. Hydra and tapeworms
  4. Sponges and starfishes

Answer: 2. Hydra and Sponges

Question 314. All flatworms differ from all roundworms in having

  1. Solid mesoderm
  2. Triploblastic body
  3. Bilateral symmetry
  4. Metamorphosis in the life history

Answer: 1. Solid mesoderm

Question 315. Which one of the following kinds of animals is triploblastic?

  1. Coral
  2. Sponge
  3. Flatworm
  4. Ctenophore

Answer: 3. Flatworm

Question 316. Which of the following is found in the lymph nodes?

  1. Taenia
  2. Plasmodium
  3. Wuchereria
  4. Diplococcus

Answer: 3. Wuchereria

Question 317. Which one of the following statements about certain given animals is correct?

  1. Molluscs are acoelomates.
  2. Insects are pseudocoelemates.
  3. Flatworms (Platyhelminthes).
  4. Roundworms (Aschelminthes) are pseudocoelomates.

Answer: 4. Roundworms (Aschelminthes) are pseudocoelomates.

Question 318. Which of the following has a closed circulatory system?

  1. Molluscs
  2. Arthropods
  3. Annelids
  4. Platyhelminthes

Answer: 3. Annelids

Question 319. The gas exchange surface in an earthworm is

  1. Skin
  2. Gills
  3. Ctenidia
  4. Tracheae

Answer: 1. Skin

Question 320. The number of chambers in the heart of a cockroach is

  1. 23
  2. 13
  3. 4
  4. 3

Answer: 2. 13

Question 321. The oxygen-carrying respiratory pigment of cockroaches and other insects are

  1. Hemoglobin
  2. Hemocyanin
  3. Hemoerythrin
  4. None of these

Answer: 4. None of these

Question 322. The main excretory product in cockroaches and other insects is

  1. Ammonia
  2. Urea
  3. Uric acid
  4. Amino acid

Answer: 3. Uric acid

Question 323. Malpighian tubules are analogous to

  1. Trachea of cockroach
  2. Gills
  3. Flame cells
  4. None of these

Answer: 3. Flame cells

Question 324. Which one of the following diseases is spread by housefly

  1. Filariasis
  2. Typhoid
  3. Encephalitis
  4. Dengue fever

Answer: 2. Typhoid

Question 325. A similarity between Anopheles and Ciilex is

  1. Eggs have lateral air floats
  2. Eggs are laid in floating raft
  3. Respiratory siphon is present
  4. Males of both suck juices of flowers and fruits

Answer: 4. Males of both suck juices of flowers and fruits

Question 326. The most commonly maintained species of bee by beekeepers is

  1. Apis mellifera
  2. Apis dorsata
  3. Apis indica
  4. Apis florae

Answer: 1. Apis mellifera

Question 327. Radula is present in

  1. Lotigo
  2. Mytilus
  3. Unio
  4. Pila

Answer: 4. Pila

Question 328. Neopilina is a connecting link between

  1. Arthropoda and Mollusca
  2. Annelida and Mollusca
  3. Mollusca and Echinodermata
  4. Mollusca and Helminthes

Answer: 2. Annelida and Mollusca

Question 329. Which one of the following molluscs was formerly used as currency (money)?

  1. Dentalium
  2. Chiton
  3. Oyster
  4. Loligo

Answer: 2. Chiton

Question 330. The second-largest phylum in the animal kingdom is

  1. Annelida
  2. Arthropoda
  3. Cephalopoda
  4. Amphineura

Answer: 3. Cephalopoda

Question 331. Phylum Mollusca can be distinguished from other invertebrates by the presence of

  1. Bilateral symmetry and exoskeleton
  2. A mantle and gills
  3. Shell and non-segmented body
  4. A mantle and non-segmented body

Answer: 4. A mantle and non-segmented body

Question 332. Which of the following traits is not characteristic of echinoderms?

  1. Water vascular system
  2. Trochophore larva
  3. Tube feet
  4. Enterocoel

Answer: 2. Trochophore larva

Question 333. The organs of locomotion in Echiniodermata are

  1. Pseudopodia
  2. Parapodia
  3. Foot
  4. Tube feet

Answer: 4. Tube feet

Question 334. The presence of tube feet is a characteristic feature of the phylum

  1. Annelida
  2. Mollusca
  3. Arthropoda
  4. Echinodermata
  5. Nemathelminthes

Answer: 4. Echinodermata

Question 335. Tube feet are characteristic structures of

  1. Starfish
  2. Cuttlefish
  3. Crayfish
  4. Jellyfish

Answer: 1. Starfish

Question 336. Which of the following is properly matched?

  1. Arthropoda-Insecta-Spider
  2. Mollusca-Ccpha lycopods-Unio
  3. Echinodermata-Asteroidea-Starfish
  4. platyhelminths-Trematoda-Plawarrla

Answer: 3. Echinodermata-Asteroidea-Starfish

Question 337. Which of the following is an exclusive echinoderm character?

  1. Tube feet
  2. Coelom divided
  3. Racial symmetry
  4. Mesodermal endoskeleton

Answer: 1. Tube feet

Question 338. Water vascular system is found in

  1. Sea pen
  2. Sea horse
  3. Sea anemone
  4. Sea cucumber

Answer: 4. Sea cucumber

Question 339. What will you look for to identify the sex of the following?

  1. Female Ascaris—Sharply curved posterior end
  2. Male frog—A copulatory pad on the first digit of the hindlimb
  3. Female cockroach—Anal cerci
  4. Male shark—Claspers borne on pelvic fins.

Answer: 4. Male shark—Claspers borne on pelvic fins.

Question 340. One very special feature in the earthworm Pheretima is that

  1. Fertilization of eggs occurs inside the body.
  2. Typhlosole greatly increases the effective absorption area of the digested food in the intestine.
  3. The S-shaped setae embedded in the integument are the defensive weapons used against the enemies.
  4. It has a long dorsal tubular heart.

Answer: 2. The typhlosole greatly increases the effective absorption area of the digested food in the intestine.

Question 341. Which one of the following groups of animals is correctly matched with its characteristic feature without any exception?

  1. Reptilia: Possess a three-chambered heart with an incompletely divided ventricle
  2. Chordata: Possess a mouth with an upper and a lower jaw
  3. Chondrichthyes: Possess cartilaginous endoskeleton.
  4. Mammalia: Give birth to young ones.

Answer: 3. Chondrichthyes: Possess cartilaginous endoskeleton.

Question 342. Which of the following happens in the common cockroach?

  1. Malpighian tubules are excretory organs projecting out from the colon.
  2. Oxygen is transported by hemoglobin in blood.
  3. The nitrogenous excretory product is urea.
  4. Food is grind by mandibles and gizzard.

Answer: 4. Food is grind by mandibles and gizzard.

Question 343. In which one of the following, the genus name, its two characters, and its phylum are not correctly matched, whereas the remaining three are correct?

NEET Biology Animal Kingdom Genes Name With Two characters

Answer: 4

Question 344. Which one of the following categories of animals is correctly described with no single exception in it?

  1. All reptiles possess scales, have a three-chambered heart, and are cold-blooded (poikilothermal).
  2. All bony fishes have four pairs of gills and an operculum on each side.
  3. All sponges are married and have collared cells.
  4. All mammals are viviparous and possess a diaphragm for breathing.

Answer: 3. All sponges are marrize and have collared cells.

Question 345. Which group of animals belongs to the same phylum?

  1. Earthworms, pinworms, tapeworms
  2. Prawn, scorpion, locusta
  3. Sponge, sea anemone, starfish
  4. Malarial parasit, Amoeba, mosquito

Answer: 2. Prawn, scorpion, locusta

Question 346. Which of the following are correctly matched with respect to their taxonomic classification?

  1. Centipede, millipede, spider, scorpion—Insecta
  2. Housefly, butterfly, tsetse fly, silverfish—Insecta
  3. Spiny anteater, sea urchin, sea cucumber—Echino-dermata
  4. Flying fish, cuttlefish, silverfish—Pisces.

Answer: 2. Housefly, butterfly, tsetse fly, silverfish—Insecta

Question 347. One of the representatives of phylum Arthropoda is

  1. Silverfish
  2. PufFerfish
  3. Flying fish
  4. Cuttlefish

Answer: 1. Silverfish

Question 348. Which animal is the Surinam toad?

  1. Pipa americana
  2. Bufo
  3. Combinator
  4. Alytes

Answer: 1. Pipa americana

Question 349. The national bird of India is

  1. Flamingo
  2. Pavo cristatus
  3. Colwnbalivia
  4. Psittacula

Answer: 2. Pavo cristatus

Question 350. In Urochordata, the notochord is found in the

  1. Head of adult
  2. Tail of adult
  3. Tail of larva
  4. Test of adult

Answer: 3. Tail of larva

Question 351. Microlecithal eggs are found in

  1. Reptilia +Aves
  2. Amphibia + Aves + Reptilia
  3. Reptilia + Aves + Chiroptera
  4. Eutheria

Answer: 4. Eutheria

Question 352. Which of the following shows sexual dimorphism?

  1. Hydra and Ascaris
  2. Hydra and Oryctolagus
  3. Ascaris and Pheretima
  4. Ascaris and Oryctolagus

Answer: 4. Ascaris and Oryctolagus

Question 353. Which is not the aerial adaptation of birds?

  1. Single ovary
  2. Pneumatic bone
  3. Gizzard
  4. Keeled sternum

Answer: 3. Gizzard

Question 354. How does reptilia differ from other vertebrates?

  1. Due to the epidermal scale
  2. Due to deistic eggs
  3. Due to tetrapod limb
  4. None of them

Answer: 1. Due to epidermal scale

Question 355. In which of the following, notochord is absent?

  1. Adult Herdmania and Balanoglossus
  2. Adult Herdmania and adult Branchiostoma
  3. Larva of Herdmania and Branchiostoma
  4. Larva of Herdmania and Balanoglossus

Answer: 1. Adult Herdmania and Balanoglossus

Question 356. Which of the following are Anamniotes?

  1. Chondrichthyes, Ostiechthyes, Amphibia
  2. Reptilia, Aves, Amphibia
  3. Amphibia, Aves, Mammals
  4. Reptilia, Mammals, Aves

Answer: 1. Chondrichthyes, Ostiechthyes, Amphibia

Question 357. Which of the following have acrolectal eggs?

  1. Aves, Reptilia
  2. Aves, Reptilia, Amphibia
  3. Aves, Reptilia, Chiroptera
  4. Aves, Eutheria

Answer: 2. Aves, Reptilia, Amphibia

Question 358. Cleidoic egg is an adaptation for

  1. Aquatic life
  2. Marine life
  3. Terrestrial life
  4. Aerial life

Answer: 3. Terrestrial life

Question 359. Which type of scales are found on the skin of cartilagi¬nous fishes’?

  1. Cycloid
  2. Ctenoid
  3. Gonoid
  4. Placoid

Answer: 4. Placoid

Question 360. In which pair, both characters are found without exception in all mammals?

  1. Hair and vivipary
  2. Vivipary and internal fertilization
  3. Vivipary and mammary glands
  4. Mammary glands and internal fertilization

Answer: 4. Mammary glands and internal fertilization

Question 361. Eggs of birds are

  1. Microlecithal
  2. Centroleeithal
  3. Megalectithal
  4. Alecithal

Answer: 3. Megalectithal

Question 362. Which character is found only in mammals?

  1. Neck
  2. Diaphragm
  3. Optic lobes of brain

Answer: 2. Diaphragm

Question 363. Heterocercal tail is found in

  1. Cartilaginous fishes
  2. Bony fishes
  3. Whale
  4. Amphibians

Answer: 1. Cartilaginous fishes

Question 364. Which animal is non-chordate?

  1. Herdmania
  2. Balanoglossus
  3. Branchiostoma
  4. Botiyllus

Answer: 2. Balanoglossus

Question 365. In which of the following reptiles, a four-chambered heart is present?

  1. Lizard
  2. Snake
  3. Scorpion
  4. Crocodile

Answer: 4. Crocodile

Question 366. Which character is not same in aves and mammals?

  1. Single systemic arch
  2. Metanephric kidney
  3. Seven cervical vertebrae
  4. Homeotherms

Answer: 3. Seven cervical vertebrae

Question 367. Icthyophis belongs to which class?

  1. Reptilia
  2. Amphibia
  3. Aves
  4. Pisces

Answer: 1. Reptilia

Question 368. Which of the following is not a characteristic of birds?

  1. Lungs with air sacs
  2. Pneumatic bone
  3. Exothermic
  4. Amniotic eggs

Answer: 3. Exothermic

Question 369. Which of the following is a reptile?

  1. Salamandra
  2. Turtle
  3. Newts
  4. Toad

Answer: 2. Turtle

Question 370. What is common in bats, whales, and rats?

  1. Absence of neck
  2. Muscular diaphragm between thorax and abdomen
  3. Testes, outside the abdominal cavity
  4. External ear pinna

Answer: 2. Muscular diaphragm between thorax and abdomen

Question 371. Placoid scales are formed in

  1. Cartilaginous fishes
  2. Bony fishes
  3. Paleontical fishes
  4. Lung fishes

Answer: 1. Cartilaginous fishes

Question 372. Hollow air-filled bones (pneumatic bones) occur in

  1. Mammals
  2. Reptiles
  3. Urodela
  4. Aves

Answer: 4. Aves

Question 373. Which among the following is true?

  1. Platypus is oviparous.
  2. Bats have feathers.
  3. Elephant is ovo viviparous
  4. Diaphragm is absent in them.

Answer: 1. Platypus is oviparous

Question 374. In which of the following animals, a post-anal tail is found?

  1. Earthworm
  2. Lower invertebrate
  3. Scorpion
  4. Snake

Answer: 4. Snake

Question 375. In which era, reptiles were dominated?

  1. Coenozoic era
  2. Mesozoic era
  3. Paleozoic era
  4. Archaeozoic era

Answer: 2. Mesozoic era

Question 376. In which of the following, notochord is present in an embryonic stage?

  1. All chordates
  2. Some chordates
  3. Vertebrates
  4. Non-chordates

Answer: 1. All chordates

Question 377. In which animal, nerve cell is present but brain is absent?

  1. Sponge
  2. Earthworm
  3. Cockroach
  4. Hydra

Answer: 4. Hydra

Question 378. Uricotelism is found in

  1. Fishes and freshwater protozoans
  2. Birds, reptiles, and insects
  3. Frogs and toads
  4. Mammals and birds

Answer: 2. Birds, reptiles, and insects

Question 379. Which of the following is a very unique feature of the mammalian body?

  1. Presence of diaphragm
  2. Four-chambered heart
  3. Rib cage
  4. Homeothermy

Answer: 1. Presence of diaphragm

Question 380. Which one of the following characters is not typical of the class Mammalia?

  1. Alveolar lungs
  2. Ten pairs of cranial nerves
  3. Seven cervical vertebrae
  4. Thecodont dentition

Answer: 2. Ten pairs of cranial nerves

Question 381. Which one of the following statements is incorrect?

  1. The principle of countercurrent flow facilitates efficient respiration in the gills of fish.
  2. The residual air in the lungs slightly decreases the efficiency of respiration in mammals.
  3. The presence of non-respiratory air sacs increases the efficiency of respiration in birds.
  4. In insects, circulating body fluids serve to distribute oxygen to tissues.

Answer: 4. In insects, circulating body fluids serve to distribute oxygen to tissues.

Question 382. Which of the following pairs are correctly matched?

  1. Only (1) and (2)
  2. (1), (3), and (4)
  3. (2), (3), and (4)
  4. Only (1) and (4)

Answer: 2. (1), (3), and (4)

Question 383. What is common between parrot, platypus, and kangaroo?

  1. Ovoaparity
  2. Homoiothermy
  3. Toothless jaws
  4. Functional postanal tail

Answer: 1. Ovoaparity

Question 384. Axolotl larva is the name of larva of

  1. Amphioxus
  2. Silkworm
  3. Ambyostoma
  4. Roundworm

Answer: 3. Ambyostoma

Question 385. Gambusia is a

  1. Parasitic fish
  2. Pest of fish
  3. Fish predator of mosquitos larva
  4. Mosquito spreading yellow fever

Answer: 3. Fish predator of mosquitos larva

Question 386. Marsupials occur in

  1. Africa
  2. America
  3. Asia
  4. Australia

Answer: 4. Australia

Question 387. An egg-laying mammal is

  1. Kangaroo
  2. Platypus
  3. Koala
  4. Whale

Answer: 2. Platypus

Question 388. Which one of the following groups of structures/organs have similar functions?

  1. Typholosle in earthworms, intestinal villi in rats, and contractile vacuole in Amoeba.
  2. Nephridia in earthworms, Malpighian tubules in cock-roach, and urinary tubules in rats.
  3. Antennae of cockroach, tympanum of frog, and clitellum of earthworm.
  4. Incisors of rats, gizzard (proventriculus) of cockroaches, and tube feet of starfish.

Answer: 2. Nephridia in earthworms, Malpighian tubules in cock-roach, and urinary tubules in rats.

Question 389. The vertebral column is derived from

  1. Dorsal nerve cord
  2. Ventral nerve cord
  3. Outgrowth of cranium
  4. Notochord

Answer: 4. Notochord

Question 390. The most favorable land adaptation in reptiles is

  1. Lungs
  2. Scales
  3. Moist skin
  4. Pentadactyl limbs

Answer: 1. Lungs

Question 391. Mammals giving rise to immature young ones and nursing them in a pouch are

  1. Monotremes
  2. Marsupials
  3. Primates
  4. Carnivores

Answer: 2. Marsupials

Question 392. The lateral line system occurs in

  1. Starfish
  2. Jellyfish
  3. Dogfish
  4. All the above

Answer: 3. Dogfish

Question 393. Ichthyophis belongs to

  1. Amphibia
  2. Mollusca
  3. Annelida
  4. Reptilia

Answer: 1. Amphibia

Question 394. Rumimants belong to the order

  1. Proboscida
  2. Artidoctyla
  3. Sirenia
  4. Cetacea

Answer: 2. Artidoctyla

Question 395. Carapace occurs in

  1. Toad
  2. Frog
  3. Bird
  4. Tortoise

Answer: 4. Tortoise

Question 396. Vertebrates have

  1. Dorsal tubular nerve cord
  2. Ventrally situated heart
  3. Body cavity with alimentary canal
  4. All the above

Answer: 4. All the above

Question 397. The glands present in the skin of frog are/have

  1. Sweat and mammary glands
  2. Sweat and sebaceous glands
  3. Sweat and mucous glands
  4. Mucous and poisonous glands

Answer: 4. Mucous and poisonous glands

Question 398. Which is the smallest taxonomic group having cranium, vertebral column, ventral heart, pulmonary respiration, and two pairs of legs?

  1. Chordata
  2. Gnathostomata
  3. Vertebrata
  4. Tetrapoda

Answer: 4. Tetrapoda

Question 399. Eggs of placental mammals are

  1. Homolecithal
  2. Alecithal
  3. Microlecithal
  4. Isolecithal

Answer: 3. Microlecithal

Question 400. The urinary bladder is absent in

  1. Bird
  2. Snakes
  3. Crocodiles
  4. All the above

Answer: 4. All the above

Question 401. The greatest evolutionary change that enabled the land vertebrates to be completely free from water was the development of

  1. Four appendages
  2. Lungs
  3. Cleidoic eggs
  4. Four-chambered heart

Answer: 3. Cleidoic eggs

Question 402. Which living connecting link is evidence for organic evolution?

  1. Archaeopteryx between reptiles and birds
  2. Lungs fishes between Pisces and reptiles
  3. Coelacanth between Pisces and amphibians
  4. Tachyglossus between reptiles and mammals

Answer: 1. Archaeopteryx between reptiles and birds

Question 403. The sonar system is found in

  1. Bats
  2. Whales
  3. Bats and whales
  4. Otter

Answer: 3. Bats and whales

Question 404. Cleidoic eggs are characteristic of

  1. Mammals
  2. Reptiles and birds
  3. Insects
  4. Fishes

Answer: 2. Reptiles and birds

Question 405. Archeopeuyx, a transitional fossil between birds and reptiles, was discovered from the rocks of which period?

  1. Jurassic
  2. Archeozoic era
  3. Cretaceous
  4. Triassic

Answer: 1. Jurassic

Question 406. The character of birds, without exception, is

  1. Omnivorous
  2. Flying wings
  3. Beak without teeth
  4. Lay eggs with a calcareous shell

Answer: 2. Flying wings

Question 407. Which of the following is an exclusive character of class Mammalia?

  1. Homoiothermy
  2. Internal fertilization
  3. Presence of a four-chambered heart
  4. Presence of a muscular diaphragm

Answer: 4. Presence of a muscular diaphragm

Question 408. Poisonous sea snake possess a

  1. Compressed tail
  2. Printed oil
  3. Depressed tail
  4. Conical tail

Answer: 1. Compressed tail

Question 409. Oviparous mammals are

  1. Kangaroo
  2. Duckbill platypus
  3. Whale
  4. Rabbit

Answer: 2. Duckbill platypus

Question 410. Torpedo is commonly

  1. Sucherfish
  2. Electric ray
  3. Globefish
  4. Sea horse

Answer: 2. Electric ray

Question 411. Which of the following snakes is non-poisonous?

  1. Cobra
  2. Krait
  3. Viper
  4. Python

Answer: 4. Python

Question 412. Sea horse belongs to

  1. Mammals
  2. Amphibia
  3. Aves
  4. Pisces

Answer: 4. Pisces

Question 413. Which of the following has an exoskeleton of scales and paired copulatory organ or penis? 

  1. Sharks
  2. Lizards
  3. Urodela
  4. Urochordata

Answer: 1. Sharks

Question 414. All chordates at one or the other state have

  1. Pharyngeal gill-slits
  2. Vertebral column
  3. Two pairs of pentadactyl limbs
  4. A moveable jaw

Answer: 1. Pharyngeal gill-slits

Question 415. Which of the following belongs to phylum Arthropoda?

  1. Starfish
  2. Goldfish
  3. Silverfish
  4. Cuttlefish

Answer: 3. Silverfish

Question 416. Which of the following does not belong to the phylum Coelentrata?

  1. Sea pen
  2. Sea feather
  3. Sea cucumber
  4. Sea fan

Answer: 3. Sea cucumber

Question 417. Ncmatocysts arc found in

  1. Porifcra
  2. Coelenentrata
  3. Nematodes
  4. Annelida

Answer: 2. Coelenentrata

Question 418. Taxonomically, which of the following sets is matched correctly?

  1. Cuttlefish, jellyfish, silverfish
  2. Bat, pigeon, kite
  3. Lobsters, spiders, shrimps
  4. Oyster, otter, octopus

Answer: 3. Lobsters, spiders, shrimps

Question 419. Sea horse is

  1. A bird
  2. A mammal
  3. An amphibian
  4. A fish

Answer: 4. A fish

Question 420. Which one of the following lays eggs yet the female secretes milk?

  1. Bat
  2. Kangaroo
  3. Platypus
  4. Ostrich

Answer: 3. Platypus

Question 421. Which of the following does not make a nest of its own?

  1. Crow
  2. Parrot
  3. Cuckoo
  4. Sparrow

Answer: 3. Cuckoo

Question 422. Which of the following kinds of animals are triploblastic?

  1. Flatworms
  2. Sponges
  3. Ctenophores
  4. Corals

Answer: 1. Flatworms

Question 423. Which of the following animals is correctly matched with its particular taxonomic category?

  1. Housefly—Musca, an order
  2. Tiger—Tigris, the species
  3. Cuttlefish—Mollusca, a class
  4. Humans—Primata, the family

Answer: 2. Tiger—Tigris, the species

Question 424. Which one of the following groups of animals is correctly matched with its one characteristic feature without even a single exception?

  1. Mammalia: Give birth to young ones.
  2. Reptilia: Possess a three-chambered heart with one incompletely divided ventricle
  3. Chordata: Possess a mouth provided with an upper and a lower jaw
  4. Chondrichthyes: Possess cartilaginous endoskeleton

Answer: 4. Chondrichthyes: Possess cartilaginous endoskeleton

Question 425. Which sound-producing organ is found in birds?

  1. Pharynx
  2. Larynx
  3. Syrinx
  4. Trachea

Answer: 3. Syrinx

Question 426. Match the name of the animal (column A) with one characteristic (column B) and the phylum/dass (column C) to which it belongs.:

Answer: 4

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