Zoology MCQs with Answers 1. Which of the following is the largest phylum in the animal kingdom? a) Mollusca b) Arthropoda ...
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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