Class 11 Biology Ch 4 MCQs with Ads
Class 11 Biology Chapter 4: Animal Kingdom – 100 MCQs
Answer Key is at the bottom of the page
1. Which one of the following is not a feature of phylum Porifera?
A) Cellular level of organization
B) Water canal system
C) Radial symmetry
D) Closed circulatory system
2. Cnidocytes are characteristic cells of:
A) Porifera
B) Cnidaria
C) Platyhelminthes
D) Nematoda
3. Animals having only ectoderm and endoderm are called:
A) Diploblastic
B) Triploblastic
C) Multicellular
D) Pseudocoelomate
4. Which is an acoelomate organism?
A) Ascaris
B) Earthworm
C) Tapeworm
D) Cockroach
5. The body cavity of annelids is termed as:
A) Haemocoel
B) Enterocoel
C) Coelom
D) Pseudocoel
6. Which animal possesses notochord only in larval form?
A) Amphioxus
B) Herdmania
C) Fish
D) Earthworm
7. Jointed appendages are present in:
A) Mollusca
B) Annelida
C) Arthropoda
D) Echinodermata
8. Butterfly belongs to:
A) Mollusca
B) Arthropoda
C) Annelida
D) Porifera
9. Which of the following shows metameric segmentation?
A) Leech
B) Hydra
C) Sponge
D) Amoeba
10. The main excretory organs in Annelida:
A) Nephridia
B) Malpighian tubules
C) Green glands
D) Flame cells
11. Corals belong to:
A) Echinodermata
B) Cnidaria
C) Mollusca
D) Annelida
12. Which is a diploblastic animal?
A) Earthworm
B) Hydra
C) Frog
D) Octopus
13. Animals without coelom are called:
A) Acoelomates
B) Pseudocoelomates
C) Coelomates
D) Eucoelomates
14. The exoskeleton of insects is made up of:
A) Calcium
B) Cellulose
C) Chitin
D) Silica
15. Which of the following is oviparous?
A) Dog
B) Elephant
C) Crocodile
D) Cat
16. ‘Water vascular system’ is found in:
A) Echinodermata
B) Mollusca
C) Arthropoda
D) Cnidaria
17. The book lungs of spiders are used for:
A) Blood circulation
B) Digestion
C) Respiration
D) Excretion
18. Which animal group is called ‘cold-blooded’?
A) Birds
B) Mammals
C) Amphibians
D) None
19. Which of the following is NOT a connective tissue?
A) Blood
B) Bone
C) Tendon
D) Epidermis
20. The special cells present in sponges are:
A) Nematocysts
B) Choanocytes
C) Sclerocytes
D) Chromatophores
21. Platyhelminthes are:
A) Flatworms
B) Roundworms
C) Segmented worms
D) Mollusks
22. Who among the following is called a living fossil?
A) Coelacanth
B) Peripatus
C) Nereis
D) Earthworm
23. Cephalothorax is present in:
A) Cockroach
B) Spider
C) Pila
D) Leech
24. Starfish is a member of:
A) Coelenterata
B) Annelida
C) Echinodermata
D) Arthropoda
25. Which of the following is sessile?
A) Prawn
B) Hydra
C) Frog
D) Amoeba
26. The phylum with pseudocoelom is:
A) Annelida
B) Arthropoda
C) Nematoda
D) Mollusca
27. Bilateral symmetry is found in:
A) Starfish
B) Amoeba
C) Earthworm
D) Hydra
28. Book lungs are respiratory organs of:
A) Crab
B) Earthworm
C) Spider
D) Fish
29. The excretory organ of cockroach is:
A) Kidney
B) Malpighian tubules
C) Nephridia
D) Green glands
30. Phylum with complete digestive system:
A) Platyhelminthes
B) Nematoda
C) Porifera
D) Cnidaria
31. Which class do sharks belong to?
A) Cyclostomata
B) Osteichthyes
C) Chondrichthyes
D) Amphibia
32. The main character of reptiles:
A) Moist skin
B) Hairy skin
C) Scaly skin
D) Fins
33. The excretory organs in molluscs are:
A) Nephridia
B) Green glands
C) Antennal glands
D) Malpighian tubules
34. The heart of a fish has:
A) 2 chambers
B) 3 chambers
C) 4 chambers
D) 1 chamber
35. Which of the following lays eggs with calcareous shells?
A) Crocodile
B) Bat
C) Dog
D) Cat
36. Insecta is the largest class of:
A) Mollusca
B) Echinodermata
C) Arthropoda
D) Coelenterata
37. The ‘Sea mouse’ is:
A) Nereis
B) Aphrodite
C) Earthworm
D) Pheretima
38. Which of the following groups is exclusively marine?
A) Arthropoda
B) Echinodermata
C) Annelida
D) Mollusca
39. The notochord in vertebrates is replaced by:
A) Nerve cord
B) Spinal cord
C) Vertebral column
D) Backbone
40. Which is NOT a phylum?
A) Mollusca
B) Porifera
C) Insecta
D) Echinodermata
41. Flame cells are excretory organs of:
A) Platyhelminthes
B) Nematoda
C) Echinodermata
D) Arthropoda
42. Which animal is triploblastic but acoelomate?
A) Tapeworm
B) Earthworm
C) Cockroach
D) Starfish
43. Which has a hydrostatic skeleton?
A) Snail
B) Sponge
C) Earthworm
D) Cockroach
44. The heart in amphibians is:
A) Two-chambered
B) Three-chambered
C) Four-chambered
D) Single chambered
45. Hermaphrodite animal among the following:
A) Cockroach
B) Earthworm
C) Pigeon
D) Fish
46. The canal system is found in:
A) Sponges
B) Hydra
C) Frog
D) Crab
47. Parapodia are locomotory organs in:
A) Annelida
B) Arthropoda
C) Echinodermata
D) Mollusca
48. Which group has true coelom?
A) Annelida
B) Nematoda
C) Platyhelminthes
D) Cnidaria
49. Vertebrates are characterized by:
A) Notochord throughout life
B) Vertebral column
C) Open circulatory system
D) Incomplete gut
50. Which animal regenerates lost arms?
A) Starfish
B) Cockroach
C) Cat
D) Rabbit
51. Unique feature of echinoderms:
A) Jointed appendages
B) Water vascular system
C) Book lungs
D) Parapodia
52. A connecting link between annelids and arthropods is:
A) Peripatus
B) Balanoglossus
C) Limulus
D) Pila
53. Exoskeleton in reptiles is made of:
A) Keratin
B) Chitin
C) Cellulose
D) Calcium carbonate
54. The respiratory organ of frogs (as adult):
A) Lungs
B) Skin
C) Gills
D) Both A and B
55. Homeothermic animals are:
A) Mammals and Aves
B) Amphibians and Birds
C) Amphibians and Mammals
D) Reptiles and Fishes
56. Which is NOT a mammalian character?
A) Mammary glands
B) Scales
C) Hair
D) Vivipary
57. Birds have:
A) Two-chambered heart
B) Pneumatic bones
C) Moist skin
D) Book lungs
58. Butterfly shows:
A) Acoelomate organization
B) Pseudocoelomate organization
C) Segmentation
D) Water vascular system
59. Book lungs are present in:
A) Crocodile
B) Spider
C) Fish
D) Earthworm
60. Which animal is parthenogenetic?
A) Earthworm
B) Honeybee
C) Cockroach
D) Human
61. Air bladder is found in:
A) Chondrichthyes
B) Osteichthyes
C) Amphibia
D) Reptilia
62. Mammals show:
A) Laying eggs
B) Mammary glands and hair
C) Moist skin
D) Scales
63. Example of a jawless fish:
A) Shark
B) Lamprey
C) Rohu
D) Catla
64. Polyps and medusae occur in:
A) Sponges
B) Coelenterates
C) Mollusks
D) Worms
65. Pneumatic bones are present in:
A) Birds
B) Mammals
C) Fish
D) Reptiles
66. Marsupials are characterized by:
A) Laying eggs
B) Pouch for young
C) Fish-like body
D) Viviparity with placenta
67. Radial symmetry is found in adult:
A) Starfish
B) Butterfly
C) Leech
D) Cockroach
68. Locomotion via cilia is found in:
A) Amoeba
B) Paramecium
C) Hydra
D) Planaria
69. Alternation of generation is seen in:
A) Obelia
B) Frog
C) Pila
D) Cockroach
70. Segmentation is found in:
A) Amoeba
B) Hydra
C) Earthworm
D) Snail
71. In open circulatory system, blood flows:
A) In vessels only
B) In notochord
C) In body cavity
D) In gills
72. Mammals are:
A) Oviparous
B) Viviparous
C) Ovoviviparous
D) Parasitic
73. Which is not a chordate character?
A) Notochord
B) Gill slits
C) Vertebral column
D) Dorsal nerve cord
74. Cnidocytes are found in:
A) Sponges
B) Coelenterates
C) Echinoderms
D) Annelids
75. The skeleton in vertebrates is:
A) Exoskeleton
B) Endoskeleton
C) Hydrostatic
D) None
76. Urochordata and Cephalochordata are called:
A) Protochordates
B) Vertebrates
C) Mammals
D) Fish
77. Larva of echinoderms shows:
A) Radial symmetry
B) Bilateral symmetry
C) Spherical symmetry
D) None
78. An acoelomate animal is:
A) Cockroach
B) Tapeworm
C) Earthworm
D) Catla
79. Who has closed circulatory system?
A) Starfish
B) Earthworm
C) Cockroach
D) Octopus
80. Mantle is a feature of:
A) Mollusca
B) Echinodermata
C) Annelida
D) Cnidaria
81. Who shows radial symmetry only in larval stage, but not adult?
A) Mollusca
B) Echinodermata
C) Annelida
D) Arthropoda
82. Flame cells occur in:
A) Mollusca
B) Platyhelminthes
C) Arthropoda
D) Nematoda
83. Which is NOT a bridge animal (connecting link)?
A) Peripatus
B) Limulus
C) Herdmania
D) Balanoglossus
84. Primary function of nephridia:
A) Digestion
B) Respiration
C) Excretion
D) Protection
85. Example of diploblastic animal:
A) Hydra
B) Nereis
C) Tapeworm
D) Prawn
86. Segmentation is not found in:
A) Earthworm
B) Cockroach
C) Tapeworm
D) Snail
87. Coelom is absent in:
A) Cockroach
B) Roundworm
C) Leech
D) Fish
88. Not a feature of chordates:
A) Notochord
B) Dorsal nerve cord
C) Closed circulatory system
D) Lateral heart
89. Which is a pseudocoelomate?
A) Roundworm
B) Leech
C) Hydra
D) Octopus
90. True coelom arises from:
A) Endoderm
B) Ectoderm
C) Mesoderm
D) Both A and B
91. The notochord is:
A) Solid
B) Fluid filled
C) Dorsal and solid
D) Dorsal and hollow
92. Mollusk shell is formed by:
A) Mantle
B) Mesoderm
C) Radula
D) Foot
93. Scales in fishes are derived from:
A) Mesoderm
B) Epidermis
C) Dermis
D) Bone
94. Which is NOT present in mammals?
A) Hair
B) Mammary glands
C) Scales
D) Diaphragm
95. Viviparous means:
A) Egg laying
B) Giving birth to live young
C) Laying calcareous eggs
D) Spore formation
96. Animals which can regenerate limbs:
A) Cat
B) Starfish
C) Dog
D) Goat
97. Unique character of mammals:
A) Feathers
B) Diaphragm
C) Gills
D) Parapodia
98. Which is not found in birds?
A) Pneumatic bones
B) Beak
C) Mammary glands
D) Four-chambered heart
99. Which of the following is endoskeleton?
A) Shell of oyster
B) Bone of frog
C) Exoskeleton of cockroach
D) Cuticle of roundworm
100. Which has a true coelom?
A) Ascaris
B) Leech
C) Hydra
D) Tapeworm
Answer Key
- D
- B
- A
- C
- C
- B
- C
- B
- A
- A
- B
- B
- A
- C
- C
- A
- C
- C
- D
- B
- A
- B
- B
- C
- B
- C
- C
- B
- B
- C
- C
- C
- A
- A
- C
- B
- B
- C
- C
- A
- A
- A
- C
- B
- A
- A
- A
- B
- B
- B
- A
- D
- A
- B
- C
- B
- B
- B
- A
- B
- B
- B
- A
- B
- A
- B
- B
- A
- B
- B
- B
- B
- A
- A
- B
- B
- A
- C
- B
- A
- B
- B
- C
- A
- C
- B
- A
- B
- C
- B
- A
- B
- B
- A
- B
- C
- B
