MCQ Questions on Animal Kingdom
1. Which class has the largest number of animals?
(a) Fishes
(b) Reptiles
(c) Insects
(d) Mammals
Answer
Answer: (c) Insects
2. Identify the characteristic of acoelomates
(a) Absence of mesoderm
(b) Absence of brain
(c) Coelom that is incompletely lined with a mesoderm
(d) Solid body without a cavity surrounding internal organs
Answer
Answer: (d) Solid body without a cavity surrounding internal organs
3. Salamander belongs to the class
(a) Pisces
(b) Aves
(c) Reptiles
(d) Amphibian
Answer
Answer: (d) Amphibian
4. Which of the following combinations is incorrect?
(a) Nematoda – roundworms, pseudocoelomate
(b) Calcarea – gastrovascular cavity, coelom present
(c) Echinodermata – coelom present, bilateral symmetry
(d) Platyhelminthes – gastrovascular cavity, flatworms, acoelomate
Answer
Answer: (b) Calcarea – gastrovascular cavity, coelom present
5. Flame cells are the excretory structures for
(a) Annelida
(b) Coelenterates
(c) Platyhelminthes
(d) Echinodermata
Answer
Answer: (c) Platyhelminthes
6. Phylum Porifera is classified based on
(a) Branching
(b) Symmetry
(c) Spicules
(d) Reproduction
Answer
Answer: (c) Spicules
7. The canal system in sponges develops due to
(a) Porous walls
(b) Gastrovascular system
(c) Reproduction
(d) Folding of inner walls
Answer
Answer: (d) Folding of inner walls
8. Select the correct pair
(a) Arthropoda – silver fish
(b) Pisces – jelly fish
(c) Echinodermata – cuttle fish
(d) Mollusca – star fish
Answer
Answer: (a) Arthropoda – silver fish
9. Which group does not contain polyp?
(a) Anthozoa
(b) Hydrozoa
(c) Scyphozoa
(d) Calcarea
Answer
Answer: (d) Calcarea
10. Ascaris is characterized by
(a) Presence of true coelom and metamerism
(b) Presence of true coelom but the absence of metamerism
(c) Absence of true coelom and metamerism
(d) Absence of true coelom but the presence of metamerism
Answer
Answer: (c) Absence of true coelom and metamerism
11. Cnidaria is characterized by
(a) Tissue level of organization
(b) Nematoblasts
(c) Coelenteron
(d) All
Answer
Answer: (d) All
12. Notochord occurs throughout life and all through the length of the body in
(a) Cephalochordata
(b) Hemichordata
(c) Urochordata
(d) Vertebrata
Answer
Answer: (a) Cephalochordata
13. Periplaneta belongs to which phylum?
(a) Mollusca
(b) Arthropoda
(c) Annelida
(d) Echinodermata
Answer
Answer: (b) Arthropoda
14. Which of the following characters is not typical to class Mammalia?
(a) Alveolar lungs
(b) Seven cervical vertebrae
(c) Thecodont dentition
(d) Ten pairs of cranial nerves
Answer
Answer: (d) Ten pairs of cranial nerves
15. Radial symmetry is found in
(a) Coelenterata and Platyhelminthes
(b) Coelenterata and Echinodermata
(c) Arthropoda and Mollusca
(d) Porifera and Coelenterata
Answer
Answer: (b) Coelenterata and Echinodermata