🧬 Biological Classification of Animal Kingdom

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1. Consider the following statements —

1. These are multicellular organisms, but their tissues are not well-organized.
2. These animals remain fixed to the substratum. Their bodies have pores called ostia.
3. These animals live in water and are called sponges.

(A) Only 1

(B) Only 1 and 2

(D) All of the above

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2. Which of the following is not an example of Porifera?

(a) Hydra

(b) Sycon

(d) Euspongia

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3. The body of Porifera has pores and canals. These are helpful in:

(a) Respiration

(b) Reproduction

(d) Digestion

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4. Which animal is known as Bath Sponge and used for cleaning during
bathing?

(a) Sycon

(b) Euspongia

(d) Spongilla

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5. Which among the following Porifera lives in freshwater?

(a) Sycon

(b) Halichondria

(d) Euspongia

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6. Which of the following statements regarding Porifera is/are true?

(a) Some are unisexual while others are hermaphroditic.

(b) All are hermaphroditic.

(d) Their body lacks a definite symmetry.

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7. Presence of ostia and osculum is a unique feature of which phylum?

(a) Porifera

(b) Coelenterata

(d) Mollusca

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8. Which of the following belongs to phylum Coelenterata?

(a) Leech

(b) Hydra

(d) Earthworm

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9. Which of the following does NOT belong to phylum Cnidaria
(Coelenterata)?

(a) Hydra

(b) Physalia

(d) Schistosoma

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10. Consider the following statements about Hydra —
1. Hydra shows tissue-level body organization.
2. Hydra has body parts showing radial symmetry.
3. Hydra has a gastrovascular cavity.
4. Hydra reproduces sexually and asexually.

(d) All 1, 2, 3, 4

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11. Which of the following is not a true example of Cnidaria?

निडेरिया संघ के जीवों के वैज्ञानिक नाम तथा उनके प्रचलित नामों के जोड़े में कौन-सा जोड़ा सुमेलित
नहीं है ?

(a) ऑटेलिया-- जेलीफिश

(b) मेट्रीडियम ---सी एनीमोन

(d) पेनाटुला ---समुद्री कलम

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12. Planula is the larva of which phylum?

(a) Annelida

(b) Porifera

(d) Cnidaria

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13. Tapeworm, Fasciola, and Parasitic worms belong to which phylum?

(a) Mollusca

(b) Porifera

(d) Coelenterata

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14. Statement I – Fasciola hepatica is called Liver Fluke.

Statement II – Schistosoma is called Blood Fluke.**

(a) Both statements I and II are true

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15. What are flukes?

(a) Parasitic flatworms

(b) Parasitic tapeworms

(d) Segmented worms

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16. Which of the following is NOT a feature of Platyhelminthes?

(a) Mostly parasitic and hermaphroditic

(b) No body cavity (acoelomate), poorly developed organ systems

(d) They have a segmented body

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17. What causes infection by flatworms?

(a) Taenia and Fasciola

(b) Tapeworms only

(d) Roundworms and tapeworms

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18.Statement I – Members of Phylum Aschelminthes are unsegmented.

Statement II – Members of Phylum Annelida are segmented.**

(a) Both I and II are correct

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19. In which phylum was the pseudocoelom first observed?

(a) Porifera

(b) Cnidaria

(d) Aschelminthes

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20. The scientific name of Leech is Hirudinaria granulosa. It belongs to which
phylum?

(a) Aschelminthes

(b) Platyhelminthes

(d) Annelida

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21. Which of the following statements is/are true?

Statement I – The soil of fields where earthworms are found is called vermicompost.
Statement II – Nereis is called sandworm.
Statement III – Fasciola is a parasitic flatworm.

(a) I, III are correct

(a) All I, II are correct

(a) All I, II, III are correct

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**22. Match the following and choose the correct answer:

Statement I – Soil with earthworms is called vermicompost
Statement II – Nereis is called sandworm
Statement III – Fasciola is a parasitic worm**

(a) All I, II, and III are correct

(a) All II, and III are correct

(a) All I and III are correct

(a) All I, II, are correct

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23. Which of the following is the softest shelled mollusk?

(a) Pila

(b) Aplysia

(d) Sepia

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24. Which of the following statements is true about Molluscs?

(a) All molluscs have hard external shells.

(b) Their body is unsegmented and coelomate.

(d) They have segmented body and jointed legs.

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25. Which phylum does Pila belong to?

(a) Porifera

(b) Annelida

(d) Cnidaria

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*26. Statement I – Insects have three pairs of legs.

Statement II – Spiders have four pairs of legs.**

(a) Both statements I and II are true

🧬 Explanation:  Insects: 6 legs (3 pairs)  Arachnids (e.g., spiders): 8 legs (4 pairs)

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27. The heart of cockroach has how many chambers?

(a) 3

(b) 11

(d) 4

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28. Which of the following is NOT a true pair?

(a) Housefly – Typhoid

(b) Sandfly – Kala Azar

(d) Tse Tse fly – Elephantiasis

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29. In which organism is red pigment found dissolved in body fluids?

(a) Earthworm

(b) Balanoglossus

(d) Silverfish

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30. How is silk obtained?

(a) From the larva of silkworm

(b) From the pupa of silkworm

(d) From the eggs of silkworm

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31. Where are taste buds found?

(a) On the tongue

(b) In the hand

(d) In the ear

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32. Why do cat’s eyes shine at night?

(a) Due to special oil

(b) Due to light reflection

(d) Due to multiple unknown reasons

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**33.

Statement I – The larva of frog, fish, and mosquito is called tadpole.

Statement II – The larva of silkworm is called caterpillar.

Only 1

only 2

neither 1 nor 2

(a) Both statements are correct

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34. Prawn and crab, which are used as seafood, belong to which phylum?

(a) Mollusca

(b) Echinodermata

(d) Pisces

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35. Which of the following is not a cold-blooded animal?

(a) Crocodile

(b) Lizard

(d) Whale

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**36. Choose the correct statements –

Earthworm is known as a friend of the farmer.
Because it increases soil fertility.
Octopus is called the most intelligent invertebrate.**

(a) All 1, 2, and 3 are correct

Only 1

only 2

neither 1 nor 2

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**37. In which phylum are organisms found with the following characteristics

Coelomate
Segmented body
Closed circulatory system**

(a) Protozoa

(b) Porifera

(d) Annelida

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38. Octopus is a –

(a) Mollusk

(b) Arthropod

(d) Echinoderm

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39. Which phylum has water vascular system?

(a) Arthropoda

(b) Protozoa

(d) Echinodermata

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40. Which of the following is not a member of Echinodermata?

(a) Starfish

(b) Brittle star

(d) Sea cucumber

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41. In which phylum is "Feather Star" found?

(a) Annelida

(b) Arthropoda

(d) Mollusca

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42. Which of the following are features of Pisces (fish)?

1. Aquatic animals
2. Respire through gills
3. Two-chambered heart
4. Body covered in scales

(a) 1, 2, 3, and 4

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**43. Identify the correct option:

Statement I – Bony fishes have a swim bladder.
Statement II – Sharks, rays, and skates are cartilaginous fish.
Statement III – Bony fishes are more evolved.**

(a) All I, II, and III are correct

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44. Which of the following are cartilaginous fishes?

(a) Dogfish

(b) Shark

(d) All of these

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45. Which vertebrate has the maximum number of species?

(a) Amphibia

(b) Pisces

(d) Birds

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46. Which is the fastest fish?

(a) Swordfish

(b) Electric ray

(d) Eel

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47. Which hormone controls the molting (shedding) process in insects?

(a) Histamine

(b) Leutin

(d) Moulting hormone

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48. Sharks live in sea but are not eaten much because –

(a) They are dangerous predators

(b) They are considered sacred

(d) They are hard to catch

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50. Amphibians are –

(a) Animals that move very fast

(b) Animals that live only in water

(d) Animals that can fly and swim

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49. How many species of sharks are known?

(a) 100

(b) 200

(d) 400

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51. Which of the following is true about Narwhals (Narwhal whales)?

(d) Narwhals are real whales that help humans trapped in polar regions.

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52. What is the baby of a Narwhal called?

(a) Pup

(b) Cub

(d) Tadpole

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53. How many chambers are there in the heart of a Narwhal?

(a) 2

(b) 3

(d) 5

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54. Narwhal makes clicking sounds underwater because –

(b) Due to sonar or echo location

🧬 Explanation: Narwhals use echolocation (like dolphins) to navigate and hunt in deep water.

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56. Narwhal stores oxygen near its tail because –

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55. Which of the following is not a reptile?

(a) Snake

(b) Crocodile

(d) Lizard

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57. Dormancy at low temperature is called –

(a) Respiration

(b) Nutrition

(d) Aestivation

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58. Dormancy at high temperature is called –

(a) Hibernation

(b) Estivation

(d) Aestivation

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59. Which of the following is not a mammal?

(a) Whale

(b) Lion

(d) Tortoise

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60. Which of the following animals does not have tear glands?

(a) Human

(b) Dog

(d) Lizard

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61. Which glands secrete venom in snakes?

(a) Modified salivary glands

(b) Poison sac

(d) Oil glands

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62. Which is the most intelligent bird?

(a) Owl

(b) Pigeon

(d) Vulture

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63. Which of the following is not a bird disease?

(a) Plague

(b) Bird flu

(d) Fowlpox

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64. Which of the following is a flightless bird?

(a) Penguin

(b) King Cobra

(d) Eagle

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65. Which was the first domesticated animal by humans?

(a) Dog

(b) Horse

(d) Sheep

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66. Some desert reptiles match their body color with surroundings. This helps in –

(b) Protection from enemies

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67. Dinosaurs were –

(a) Reptiles

(b) Amphibians

(d) Fish

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68. Archaeopteryx belongs to –

(a) Reptiles

(b) Birds

(d) Dinosaurs

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69. Which animals are used as bio-indicators of water pollution?

(a) Earthworm

(b) Fish

(d) All of these

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70. In malaria, what causes destruction of red blood cells?

(a) Hemolysin

(b) Hemoglobin

(d) Virus

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71. What is the normal body temperature of humans?

(a) 100°F

(b) 98.6°F

(d) 96.5°F

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72. Which part of the eye detects colors?

(a) Lens

(b) Retina

(d) Cornea

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73. What gives color to bird feathers?

(a) Blood and bones

(b) Muscles and fat

(d) None of these

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75. Which is the most ancient bird on Earth?

(a) Hen

(b) Pigeon

(d) Cuckoo

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76. Which of the following is the smallest bird?

(a) Sparrow

(b) Parrot

(d) Crow

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77. Syrinx is the sound-producing organ of –

(a) Mammals

(b) Reptiles

(d) Insects

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78. Which is the fastest flying bird found in the world?

(a) Hummingbird

(b) Falcon

(d) Pigeon

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79. Archaeopteryx is –

(a) Bird of the Jurassic age

(b) First bird of the Cretaceous era

(d) Transitional fossil between reptiles and birds

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80. Where are penguins found?

(a) Africa

(b) South Pole

(d) Australia

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81. Which bird can fly the longest distance without stopping?

(a) Pigeon

(b) Arctic Tern

(d) Owl

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82. Which bird lays the largest eggs in the world?

(a) Ostrich

(b) Emu

(d) Penguin

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83. What is the national bird of India?

(a) Swan

(b) Parrot

(d) Peacock

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84. Which bird is scientifically named Psittacula?

(a) Swan

(b) Parrot

(d) Cuckoo

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85. Which of the following birds can fly?

(a) Penguin

(b) Ostrich

(d) Parrot

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86. Which bird flies backward?

(a) Ostrich

(b) Duck

(d) Parrot

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87. Why are birds important indicators of environmental pollution?

(a) Because of bright color

(b) Because of sweet voice

(d) Due to sensitivity to toxic gases

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88. Which bird hides its head under its wing to avoid danger?

(a) Sand grouse

(b) Owl

(d) Ostrich

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89. Which is a unique feature of mammals?

(a) Oviparous

(b) Oily glands

(d) Mammary glands

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90. What is blood?

(a) Dirty water from body

(b) Red-colored water

(d) A fluid that helps in digestion

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91. Which of the following is not a mammal?

(a) Whale

(b) Bat

(d) Human

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92. The study of blood is called –

(a) Muscle study

(b) Hematology

(d) Anatomy

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93. Mammals are warm-blooded because –

(d) They have sweat glands, fat layer, and constant body temperature

🧬 Explanation: Mammals maintain constant body temp due to fat insulation, sweat glands, etc.

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94. How many chambers are there in the human heart?

(a) 2

(b) 3

(d) 5

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95. In which of the following are red blood cells found?

(a) Frog

(b) Amoeba

(d) Sponge

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96. How many bones are there in the human ear?

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97. Which vitamin is found in RBCs?

(a) A

(b) D

(d) E

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98. How many bones are there in a baby?

(a) 206

(b) 270

(d) 250

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99. Why do cats’ eyes shine in the dark?

(a) Due to lens

(b) Due to retina

(d) Unknown reason

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100. What helps bats fly in the dark?

(a) Teeth

(b) Wings

(d) Eyes

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101. Why can owls fly silently in the dark?

(d) Because of special feathers near their mouth

🧬 Explanation: Owls have soft-edged feathers that muffle sound, enabling silent flight.

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102. What is the scientific name of humans?

(a) Homo erectus

(b) Homo neanderthalensis

(d) Homo sapiens

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104. How do mammals obtain oxygen inside the womb?

🧬 Explanation: Placenta provides oxygen and nutrients from the mother’s blood to the developing fetus.

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105. Which of the following has red-colored blood?

(a) Cockroach

(b) Monkeys

(d) Leech

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106. Which organ helps in giving birth?

(a) Uterus

(b) Fallopian tube

(d) Vas deferens

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107. Which of the following is a cold-blooded animal?

(a) Shark

(b) Lion

(d) Elephant

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108. Why does body temperature rise during malaria?

(b) Due to the bursting of RBCs

🧬 Explanation: When malarial parasites destroy RBCs, toxic substances are released, causing fever.

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109. In which part of the egg is the embryo mainly found?

(a) Outer shell

(b) Egg white

(d) Egg yolk

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110. Which of the following is a warm-blooded animal?

(a) Crocodile

(b) Fish

(d) Lizard

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111. Which animal sleeps with one eye open?

(a) Housefly

(b) Owl

(d) Crocodile

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112. Which of the following is the loudest monkey?

(a) Howler monkey

(b) Vervet monkey

(d) Spider monkey

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114. Which of the following does NOT have a keel?

(a) Duck

(b) Pigeon

(d) Ostrich

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113. What is a homeothermic animal?

(d) An animal whose body temp remains constant despite changes in surroundings

🧬 Explanation: Homeothermic (warm-blooded) animals like birds and mammals maintain a constant internal body temperature.

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115. Who were Archaeopteryx?

🧬 Explanation: Archaeopteryx were transitional fossils between reptiles and birds.

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116. Which is a clotting protein found in blood?

(a) Fibrinogen

(b) Hemoglobin

(d) Albumin

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117. Archaeopteryx links which groups of animals?

Answer: (b) Reptiles and birds

🧬 Explanation: Archaeopteryx shares features with both reptiles and birds – wings + teeth

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118. Which animal can die by drinking water?

(a) Frog

(b) Lion

(d) Kangaroo rat

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119. What is mule?

(a) Offspring of a male donkey and female horse

🧬 Explanation: A mule = male donkey (jack) × female horse (mare) – sterile hybrid.

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120. What is the national aquatic animal of India?

🧬 Explanation: The Ganges river dolphin is India’s national aquatic animal.

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121. What is the national heritage animal of India?

(a) Elephant

🧬 Explanation: Elephant is the national heritage animal of India.

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122. Which animal is closest to modern humans?

Answer: (b) Chimpanzee

🧬 Explanation: Chimpanzees share about 98–99% DNA with humans.

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123. Which one of the following is not an insect?

(a) Ant

(b) Housefly

(d) Spider

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124. Which of the following animals is a rodent?

(a) Monkey

(b) Cat

(d) Dog

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125. How do insects breathe?

(a) Through lungs

(b) Through mouth

(d) Through skin

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126. Which animal lays eggs but its babies do not come out of them?

(a) Cockroach

(b) Kangaroo

(d) Seahorse

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127. In which animal is one gender completely different from the other in
appearance?

✅ Answer: (b) Peacock

🧬 Explanation: Sexual dimorphism is extreme in peacocks – males are colorful, females are dull.

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128. Which of the following is a type of animal in which the female kills the
male after mating?

(a) Housefly

(b) Honeybee

(d) Black Widow Spider

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129. Which of the following is not an insect?

(a) Ant

(b) Cockroach

(d) Spider

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130. What is the name of the animal that threatens the extinction of the
honeybee species?

(a) Wasp

(b) Virus

(d) Varroa mite

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131. What is the name given to flying mammals in India?

(a) Pangolin

(b) Bat

(d) Gibbon

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132. Which one is not a mammal?

(a) Blue whale

(b) Dolphin

(d) Shark

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133. What is the male honeybee called?

Drone

🧬 Explanation: The male bee is called a drone and its sole job is to mate with the queen.

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134. Which of the following is an egg-laying mammal?

(a) Kangaroo

(b) Platypus

(d) Monkey

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135. Which produces the most milk?

(a) Cow

(b) Goat

(d) Human

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136. Which animal is tamed as a worker to carry logs in forests?

🧬 Explanation: Elephants are trained and used in forests to carry heavy logs.

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137. Why are dolphins used in the Navy?

(a) For detecting bombs

(b) For rescue operations

(d) For transport

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138. What devices are used for underwater communication?

(a) Sonar and radar

(b) Human and bell

(d) Television and satellite

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139. Which of the following is a biting insect?

(a) Butterfly

(b) Beetle

(d) Mosquito

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140. Which disease is classified as an occupational hazard in laboratory
research?

(a) Rabies

🧬 Explanation: Rabies virus can be a risk in research labs, especially when working with animals.

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141. What is sericulture?

(a) Apiculture

(b) Fish farming

(d) Goat farming

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142. In which field are bees used for commercial purposes?

(a) Silk production

(b) Beekeeping

(d) Sericulture

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143. Which bank preserves animal species and their gene pools?

(a) Herbarium

(b) Zoological Park

(d) Wildlife Sanctuary

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144. Where was the white tiger first seen in India?

(a) Jim Corbett National Park

(b) Ranthambore

(d) Sunderbans

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145. Which of the following is not a poisonous snake?

(a) Cobra

(b) Viper

(d) Krait

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146. Which of the following is India's national aquatic animal?

(a) Olive ridley turtle

(b) Ganges river dolphin

(d) Blue whale

145 / 168

147. What is 'pearling' related to?

(a) Dolphin

(b) Mollusc

(d) Insect

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148. Which of the following is not a fish?

(a) Whale

(b) Shark

(d) Rohu

147 / 168

149. What is the scientific name of the Indian cobra?

(a) Python

(b) Snake

(d) Natrix

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150. Which animals have strong senses of smell and hearing?

(a) Reptiles

(b) Birds

(d) Amphibians

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151. What is true for Amphibians?

(b) 4 legs in front and 5 digits on hind legs

🧬 Explanation: Amphibians typically have 4 forelimbs and 5-toed hind limbs adapted for jumping/swimming.

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152. How do birds take their first breath when born?

(d) From the air sac inside the shell near the beak

🧬 Explanation: Birds have an air pocket in the egg near the beak that allows their first breath before hatching.

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153. What are animals with jaws called?

(a) Agnatha

(b) Cyclostomata

(d) Myxine and Petromyzon

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154. Which of the following groups is entirely aquatic?

(a) Chondrichthyes, Cyclostomata, Osteichthyes

(b) Amphibia, Cyclostomata, Pisces

(d) Reptilia, Pisces, Mammals

153 / 168

155. When frogs' hind legs become deformed, it indicates a pollution-related
disease. What is the reason?

(a) Water pollution

(b) Nutritional imbalance

(d) Predation by birds

154 / 168

156. In which of the following animals are the eyes very large and highly
adapted to detect prey in darkness?

(a) Cockroach

(b) Rajughurumbh (moth)

(d) Planaria

155 / 168

157. Which bird imitates the calls of other birds?

(a) Owl

(b) Cuckoo

(d) Crow

156 / 168

158. Who invented the stethoscope?

(a) Newton

(b) Galileo

(d) Boyle

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159. What is the major cause of the decline in the number of Indian vultures?

(a) High mortality rate

(b) Food shortage

(d) Pollution

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160. Which of the following is not a type of fish?

(a) Starfish

(b) Cartilaginous fish

(d) Jawless fish

159 / 168

161. What is the definition of hibernation?

(a) In cold regions, animals reduce their metabolism to survive winters

🧬 Explanation: Hibernation is a state of reduced metabolic activity in cold environments to conserve energy.

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162. Which of the following is not a hermaphrodite animal?

(a) Earthworm

(b) Leech

(d) Cockroach

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163. In which group of animals is a three-chambered heart found?

(a) Only reptiles

(b) Only amphibians

(d) Fish

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164. In which of the following is a physical body covering also a locomotory
organ?

(a) Earthworm

(b) Leech

(d) Sycon (Sponge)

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165. What is a unique feature of marsupials?

(a) They lay eggs

(b) Embryo develops in a pouch

(d) They live in water

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166. Which of the following is an aquatic mammal?

(a) Blue whale

(b) Jellyfish

(d) Fish

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167. Who is known as the father of modern taxonomy?

(a) Mendel

(b) Linnaeus

(d) Darwin

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169. Which of the following lays eggs but also gives birth to young ones?

(a) Platypus

(b) Whale

(d) Horse

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168. Which animal has a four-chambered heart?

(a) Lizard

(b) Snake

(d) Fish

168 / 168

170. What is the scientific name of the lion?

(a) Panthera tigris

(b) Panthera leo

(d) Canis lupus

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🦴 Chapter 13: Skeletal System of Human Body

Control and Coordination in Plants and Human Body

Chapter 10:Excretion in Plants and Humans

Chapter 9:Transport in Plant and Human Body

Respiration in Plants and Humans

🧪 Biomolecules – Component of Food

🌿 Nutrition in Plants and Humans – Practice Questions

🧬 Biological Classification of Animal Kingdom

🌱 Chapter 4: Biological Classification of Plants

Micro-organism

🧬 Biological Classification of Animal Kingdom