Biology Multiple Choice Questions and Answers for Different Competitive Exams

Multiple Choice Questions on Animal Kingdom

1. The largest animal ever existed on earth is

a) Woolly Mammoth
b) African elephant
c) Tyrannosaurus
d) Sulphur bottom (blue) Whale

2. Which class has the largest number of animals?
Insects
a) Mammals
b) Fishes
c) Insects
d) Reptiles

3. Salamander belongs to the class:
a) Aves
b) Reptiles
c) Pisces
d) Amphibian
4.Vertebrates and tunicates share
a) Jaws adapted for feeding
b) A high degree of cephalisation
c) A notochord and a dorsal, hollow nerve cord
d) The formation of structures from the neural crest

5. The water vascular system of echinoderms
a) Functions as a circulatory system that distributes nutrients to body cells
b) Functions in locomotion, feeding, and gas exchange
c) Is bilateral in organization, even through the adult animal is not bilateral symmetrical
d) Moves water through the animal body during suspension feeding

6. Acoelomates are characterized by
a) The absence of brain
b) The absence of mesoderm
c) A solid body without a cavity surrounding internal organs
d) A coelom that is not completely lined with mesoderm

7. Which of the following characteristic is probably most responsible for the great diversification of insects on land?
a) Segmentation
b) Antennae
c) Bilateral symmetry
d) Exoskeleton

8. Mammals and living birds share all of the following characteristics except
a) Endothermy
b) Descent from a common amniotic ancestor
c) A dorsal, hollow nerve cord
d) An archosaur common ancestor

9. Most marsupial and all monotreme species today, are found in:
a)  Australia
b) Asia
c)  Europe
d)  Central and south America

10. Which of the following combination of phylum and description is incorrect?
a) Echinodermata-bilateral symmetry as larva, coelom present
b) Nematoda-roundworms, pseudocoelomate
c)  Platyhelminthes- flatworms, gastrovascular cavity, acoelomate
d)  Calcarea-gastrovascular cavity, coelom present
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Answers:
  1. d) Sulphur bottom (blue) Whale
  2. c) Insects
  3. d) Amphibian
  4. c) A notochord and a dorsal, hollow nerve cord
  5. b) Functions in locomotion, feeding, and gas exchange
  6. c) A solid body without a cavity surrounding internal organs
  7. d) Exoskeleton
  8. d) An archosaur common ancestor
  9. a) Australia
  10. d) Calcarea-gastrovascular cavity, coelom present

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