Zoology MCQs with Answers
1. Which of the following is the largest phylum
in the animal kingdom?
a) Mollusca
b) Arthropoda
c) Chordata
d) Annelida
Answer: b) Arthropoda
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2. Which of the following is NOT a
characteristic of mammals?
a) Presence of mammary glands
b) Cold-blooded
c) Hair or fur
d) Viviparity
Answer: b) Cold-blooded
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3. The study of insects is called:
a) Ornithology
b) Entomology
c) Herpetology
d) Ichthyology
Answer: b) Entomology
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4. Which of the following is a flightless bird?
a) Sparrow
b) Penguin
c) Pigeon
d) Eagle
Answer: b) Penguin
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5. The largest living mammal is:
a) African Elephant
b) Blue Whale
c) Giraffe
d) Hippopotamus
Answer: b) Blue Whale
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6. Which of the following is an example of a
cartilaginous fish?
a) Salmon
b) Shark
c) Tuna
d) Catfish
Answer: b) Shark
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7. The process of shedding the exoskeleton in
arthropods is called:
a) Metamorphosis
b) Molting
c) Hibernation
d) Regeneration
Answer: b) Molting
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8. Which of the following is a parasitic flatworm?
a) Planaria
b) Tapeworm
c) Earthworm
d) Leech
Answer: b) Tapeworm
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9. The scientific name of the common frog is:
a) Rana tigrina
b) Homo sapiens
c) Panthera leo
d) Canis lupus
Answer: a) Rana tigrina
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10. Which of the following is a characteristic
of reptiles?
a) Moist skin
b) Lay eggs in water
c) Scales on the body
d) Warm-blooded
Answer: c) Scales on the body
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11. The respiratory organ in earthworms is:
a) Lungs
b) Gills
c) Skin
d) Trachea
Answer: c) Skin
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12. Which of the following is NOT a part of the
digestive system of a cockroach?
a) Gizzard
b) Malpighian tubules
c) Stomach
d) Typhlosole
Answer: d) Typhlosole
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13. The largest bird in the world is:
a) Ostrich
b) Emu
c) Albatross
d) Eagle
Answer: a) Ostrich
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14. Which of the following is a cold-blooded
animal?
a) Bat
b) Crocodile
c) Dolphin
d) Kangaroo
Answer: b) Crocodile
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15. The process of transformation from larva to
adult in insects is called:
a) Molting
b) Metamorphosis
c) Regeneration
d) Hibernation
Answer: b) Metamorphosis
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16. Which of the following is a marsupial?
a) Kangaroo
b) Elephant
c) Tiger
d) Dolphin
Answer: a) Kangaroo
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17. The scientific study of animal behavior is
called:
a) Ecology
b) Ethology
c) Genetics
d) Physiology
Answer: b) Ethology
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18. Which of the following is a characteristic
of amphibians?
a) Dry scaly skin
b) Lay eggs on land
c) Breathe through gills and lungs
d) Warm-blooded
Answer: c) Breathe through gills and lungs
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19. The largest living reptile is:
a) Komodo Dragon
b) Saltwater Crocodile
c) Anaconda
d) Green Iguana
Answer: b) Saltwater Crocodile
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20. Which of the following is a unicellular
organism?
a) Amoeba
b) Hydra
c) Earthworm
d) Jellyfish
Answer: a) Amoeba
21. Which of the following is NOT a
characteristic of birds?
a) Feathers
b) Lay eggs
c) Mammary glands
d) Beak
Answer: c) Mammary glands
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22. The process of producing light by living
organisms is called:
a) Bioluminescence
b) Photosynthesis
c) Chemosynthesis
d) Fluorescence
Answer: a) Bioluminescence
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23. Which of the following is a jawless fish?
a) Shark
b) Lamprey
c) Tuna
d) Salmon
Answer: b) Lamprey
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24. The scientific name of the honeybee is:
a) Apis mellifera
b) Bombyx mori
c) Drosophila melanogaster
d) Periplaneta americana
Answer: a) Apis mellifera
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25. Which of the following is a characteristic
of cnidarians?
a) Radial symmetry
b) Bilateral symmetry
c) Segmented body
d) Exoskeleton
Answer: a) Radial symmetry
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26. The largest primate in the world is:
a) Gorilla
b) Chimpanzee
c) Orangutan
d) Gibbon
Answer: a) Gorilla
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27. Which of the following is a nocturnal
animal?
a) Owl
b) Sparrow
c) Pigeon
d) Crow
Answer: a) Owl
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28. The excretory organ in insects is:
a) Kidney
b) Malpighian tubules
c) Nephridia
d) Flame cells
Answer: b) Malpighian tubules
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29. Which of the following is a characteristic
of echinoderms?
a) Spiny skin
b) Soft body
c) Segmented body
d) Jointed appendages
Answer: a) Spiny skin
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30. The process of asexual reproduction in hydra
is called:
a) Binary fission
b) Budding
c) Fragmentation
d) Sporulation
Answer: b) Budding
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31. Which of the following is a marsupial mammal?
a) Kangaroo
b) Platypus
c) Bat
d) Dolphin
Answer: a) Kangaroo
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32. The scientific study of fish is called:
a) Ichthyology
b) Ornithology
c) Herpetology
d) Entomology
Answer: a) Ichthyology
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33. Which of the following is a characteristic
of annelids?
a) Segmented body
b) Soft, unsegmented body
c) Exoskeleton
d) Radial symmetry
Answer: a) Segmented body
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34. The largest species of shark is:
a) Great White Shark
b) Hammerhead Shark
c) Whale Shark
d) Tiger Shark
Answer: c) Whale Shark
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35. Which of the following is a characteristic
of mollusks?
a) Hard exoskeleton
b) Soft body
c) Segmented body
d) Jointed appendages
Answer: b) Soft body
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36. The respiratory organ in fish is:
a) Lungs
b) Gills
c) Skin
d) Trachea
Answer: b) Gills
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37. Which of the following is a characteristic
of amphibians?
a) Dry, scaly skin
b) Lay eggs in water
c) Warm-blooded
d) Feathers
Answer: b) Lay eggs in water
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38. The scientific name of the domestic dog is:
a) Canis lupus
b) Felis catus
c) Panthera leo
d) Equus caballus
Answer: a) Canis lupus
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39. Which of the following is a characteristic
of arachnids?
a) Six legs
b) Eight legs
c) Wings
d) Antennae
Answer: b) Eight legs
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40. The process of regeneration is most commonly
seen in:
a) Starfish
b) Birds
c) Mammals
d) Insects
Answer: a) Starfish
41. Which of the following is a characteristic
of nematodes?
a) Segmented body
b) Unsegmented, cylindrical body
c) Soft, flat body
d) Hard exoskeleton
Answer: b) Unsegmented, cylindrical body
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42. The largest species of penguin is:
a) Emperor Penguin
b) King Penguin
c) Adelie Penguin
d) Gentoo Penguin
Answer: a) Emperor Penguin
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43. Which of the following is a characteristic
of platyhelminthes?
a) Flat, unsegmented body
b) Segmented body
c) Hard exoskeleton
d) Radial symmetry
Answer: a) Flat, unsegmented body
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44. The scientific study of reptiles and
amphibians is called:
a) Herpetology
b) Ichthyology
c) Ornithology
d) Entomology
Answer: a) Herpetology
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45. Which of the following is a characteristic
of poriferans?
a) Pores on the body
b) Segmented body
c) Jointed appendages
d) Radial symmetry
Answer: a) Pores on the body
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46. The largest species of lizard is:
a) Komodo Dragon
b) Green Iguana
c) Chameleon
d) Gecko
Answer: a) Komodo Dragon
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47. Which of the following is a characteristic
of chordates?
a) Presence of a notochord
b) Exoskeleton
c) Radial symmetry
d) Soft, unsegmented body
Answer: a) Presence of a notochord
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48. The scientific name of the common housefly
is:
a) Musca domestica
b) Drosophila melanogaster
c) Periplaneta americana
d) Apis mellifera
Answer: a) Musca domestica
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49. Which of the following is a characteristic
of crustaceans?
a) Jointed appendages
b) Soft, unsegmented body
c) Radial symmetry
d) Feathers
Answer: a) Jointed appendages
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50. The largest species of turtle is:
a) Leatherback Turtle
b) Green Turtle
c) Loggerhead Turtle
d) Hawksbill Turtle
Answer: a) Leatherback Turtle
Awesome! Let’s continue with the next set of Zoology
MCQs. Here are questions 61–80 with answers:
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Zoology MCQs (61–80)
61. Which of the following is a characteristic
of protozoans?
a) Multicellular
b) Unicellular
c) Photosynthetic
d) Presence of cell wall
Answer: b) Unicellular
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62. The largest species of bat is:
a) Flying Fox
b) Vampire Bat
c) Fruit Bat
d) Horseshoe Bat
Answer: a) Flying Fox
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63. Which of the following is a characteristic
of sponges?
a) Presence of spicules
b) Segmented body
c) Jointed appendages
d) Radial symmetry
Answer: a) Presence of spicules
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64. The scientific study of birds is called:
a) Ornithology
b) Herpetology
c) Ichthyology
d) Entomology
Answer: a) Ornithology
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65. Which of the following is a characteristic
of coelenterates?
a) Presence of cnidocytes
b) Segmented body
c) Hard exoskeleton
d) Jointed appendages
Answer: a) Presence of cnidocytes
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66. The largest species of snake is:
a) Anaconda
b) King Cobra
c) Python
d) Black Mamba
Answer: a) Anaconda
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67. Which of the following is a characteristic
of flatworms?
a) Bilateral symmetry
b) Radial symmetry
c) Segmented body
d) Hard exoskeleton
Answer: a) Bilateral symmetry
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68. The scientific name of the common earthworm
is:
a) Lumbricus terrestris
b) Pheretima posthuma
c) Hirudo medicinalis
d) Ascaris lumbricoides
Answer: a) Lumbricus terrestris
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69. Which of the following is a characteristic
of roundworms?
a) Cylindrical, unsegmented body
b) Flat, segmented body
c) Soft, unsegmented body
d) Hard exoskeleton
Answer: a) Cylindrical, unsegmented body
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70. The largest species of frog is:
a) Goliath Frog
b) Poison Dart Frog
c) Bullfrog
d) Tree Frog
Answer: a) Goliath Frog
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71. Which of the following is a characteristic
of arthropods?
a) Jointed appendages
b) Soft, unsegmented body
c) Radial symmetry
d) Presence of notochord
Answer: a) Jointed appendages
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72. The scientific name of the common cockroach
is:
a) Periplaneta americana
b) Musca domestica
c) Apis mellifera
d) Bombyx mori
Answer: a) Periplaneta americana
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73. Which of the following is a characteristic
of echinoderms?
a) Water vascular system
b) Jointed appendages
c) Soft, unsegmented body
d) Presence of notochord
Answer: a) Water vascular system
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74. The largest species of crab is:
a) Japanese Spider Crab
b) Blue Crab
c) Hermit Crab
d) King Crab
Answer: a) Japanese Spider Crab
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75. Which of the following is a characteristic
of mollusks?
a) Presence of a muscular foot
b) Segmented body
c) Jointed appendages
d) Hard exoskeleton
Answer: a) Presence of a muscular foot
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76. The scientific name of the silkworm is:
a) Bombyx mori
b) Apis mellifera
c) Drosophila melanogaster
d) Periplaneta americana
Answer: a) Bombyx mori
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77. Which of the following is a characteristic
of annelids?
a) Presence of setae
b) Soft, unsegmented body
c) Radial symmetry
d) Hard exoskeleton
Answer: a) Presence of setae
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78. The largest species of jellyfish is:
a) Lion’s Mane Jellyfish
b) Box Jellyfish
c) Moon Jellyfish
d) Portuguese Man-of-War
Answer: a) Lion’s Mane Jellyfish
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79. Which of the following is a characteristic
of chordates?
a) Presence of pharyngeal slits
b) Soft, unsegmented body
c) Radial symmetry
d) Hard exoskeleton
Answer: a) Presence of pharyngeal slits
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80. The scientific name of the fruit fly is:
a) Drosophila melanogaster
b) Musca domestica
c) Apis mellifera
d) Bombyx mori
Answer: a) Drosophila melanogaster
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Zoology MCQs (81–100)
81. Which of the following is a characteristic
of cnidarians?
a) Presence of tentacles
b) Segmented body
c) Jointed appendages
d) Hard exoskeleton
Answer: a) Presence of tentacles
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82. The largest species of octopus is:
a) Giant Pacific Octopus
b) Blue-ringed Octopus
c) Common Octopus
d) Dumbo Octopus
Answer: a) Giant Pacific Octopus
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83. Which of the following is a characteristic
of nematodes?
a) Pseudocoelomate
b) Coelomate
c) Acoelomate
d) Radial symmetry
Answer: a) Pseudocoelomate
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84. The scientific name of the common house cat
is:
a) Felis catus
b) Canis lupus
c) Panthera leo
d) Equus caballus
Answer: a) Felis catus
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85. Which of the following is a characteristic
of arthropods?
a) Exoskeleton made of chitin
b) Soft, unsegmented body
c) Radial symmetry
d) Presence of notochord
Answer: a) Exoskeleton made of chitin
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86. The largest species of ant is:
a) Bulldog Ant
b) Carpenter Ant
c) Fire Ant
d) Leafcutter Ant
Answer: a) Bulldog Ant
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87. Which of the following is a characteristic
of echinoderms?
a) Radial symmetry in adults
b) Bilateral symmetry in adults
c) Soft, unsegmented body
d) Jointed appendages
Answer: a) Radial symmetry in adults
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88. The scientific name of the common honeybee
is:
a) Apis mellifera
b) Bombyx mori
c) Drosophila melanogaster
d) Periplaneta americana
Answer: a) Apis mellifera
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89. Which of the following is a characteristic
of mollusks?
a) Presence of a mantle
b) Segmented body
c) Jointed appendages
d) Hard exoskeleton
Answer: a) Presence of a mantle
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90. The largest species of butterfly is:
a) Queen Alexandra’s Birdwing
b) Monarch Butterfly
c) Swallowtail Butterfly
d) Blue Morpho Butterfly
Answer: a) Queen Alexandra’s Birdwing
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91. Which of the following is a characteristic
of annelids?
a) Closed circulatory system
b) Open circulatory system
c) Soft, unsegmented body
d) Radial symmetry
Answer: a) Closed circulatory system
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92. The scientific name of the common pigeon is:
a) Columba livia
b) Passer domesticus
c) Corvus corax
d) Sturnus vulgaris
Answer: a) Columba livia
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93. Which of the following is a characteristic
of chordates?
a) Dorsal hollow nerve cord
b) Soft, unsegmented body
c) Radial symmetry
d) Hard exoskeleton
Answer: a) Dorsal hollow nerve cord
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94. The largest species of scorpion is:
a) Giant Forest Scorpion
b) Emperor Scorpion
c) Deathstalker Scorpion
d) Bark Scorpion
Answer: a) Giant Forest Scorpion
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95. Which of the following is a characteristic
of protozoans?
a) Heterotrophic
b) Autotrophic
c) Multicellular
d) Presence of cell wall
Answer: a) Heterotrophic
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96. The scientific name of the common rat is:
a) Rattus norvegicus
b) Mus musculus
c) Cavia porcellus
d) Oryctolagus cuniculus
Answer: a) Rattus norvegicus
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97. Which of the following is a characteristic
of cnidarians?
a) Diploblastic
b) Triploblastic
c) Segmented body
d) Jointed appendages
Answer: a) Diploblastic
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98. The largest species of spider is:
a) Goliath Birdeater
b) Black Widow
c) Tarantula
d) Wolf Spider
Answer: a) Goliath Birdeater
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99. Which of the following is a characteristic
of flatworms?
a) Acoelomate
b) Pseudocoelomate
c) Coelomate
d) Radial symmetry
Answer: a) Acoelomate
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100. The scientific name of the common rabbit
is:
a) Oryctolagus cuniculus
b) Rattus norvegicus
c) Mus musculus
d) Cavia porcellus
Answer: a) Oryctolagus cuniculus
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