Zoology Quiz 16 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Scientists use a system called ..... to group organisms.

Correct Answer: B) Taxonomy.

2. Is

Correct Answer: A) Me.

3. ..... is the study of fishes.

Correct Answer: B) Ichthyology.

4. What is phylogeny?

Correct Answer: D) Evolutionary history.

5. What is the term for a trait that is no longer functional but remains in a reduced or functionless form?

Correct Answer: C) Vestigial trait.

6. What type of skeleton do echinoderms have?

Correct Answer: C) Endoskeleton.

7. Butterfly-Buckeye

Correct Answer: A) True.

8. Which is an example of a crinoid? (lily-like)

Correct Answer: C) Sea lily.

9. Why was it necessary for primitive cultures to know their surroundings?

Correct Answer: C) For survival.

10. What characteristic does someone possess if they are "tenacious" ?

Correct Answer: B) Holding fast, persistent, determined.

11. What is an advantage of being sessile?

Correct Answer: B) Low energy requirement.

12. Which class of vertebrates has young that are born live?

Correct Answer: C) Mammals.

13. Which is an example of an Echinoidea member?

Correct Answer: B) Sand dollar.

14. The science of describing, naming, and classifying organisms is

Correct Answer: C) Taxonomy.

15. What class does SEA CUCUMBER belongs to?

Correct Answer: E) Class Holothuroidea.

16. Deficiency of vassopressin hormone causes

Correct Answer: B) Diabetes insipidus.

17. Which branch of biology studies genes and heredity?

Correct Answer: A) Genetics.

18. Diabetes is caused due to .....

Correct Answer: A) Insulin.

19. On average, organisms produce too many offspring, so

Correct Answer: B) All options are correct.

20. Animals in the phylum Cnidaria do not have brains. Instead, they have ..... that conduct signals throughout their bodies.

Correct Answer: A) Nerve nets.