Zoology Quiz 93 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Identify the correct phylum:clam

Correct Answer: E) Mollusca.

2. About 97% of oxygen is transported by RBC the remaining 3 % is

Correct Answer: A) Transported in Dissolved form in blood plasma.

3. How much of its time does a sloth spend in trees?

Correct Answer: D) 99%.

4. The absence of a central point or axis around which an animal's body parts are equally distributed.

Correct Answer: C) Asymmetry.

5. Study of classification and naming systems

Correct Answer: D) Taxonomy.

6. The baby duckling hatched and immediately began to follow Tom the cat around. What is this an example of?

Correct Answer: B) Imprinting.

7. What period in the Mesozoic Era were dinosaurs dominant?

Correct Answer: B) Triassic Period.

8. Sea Urchins are also called as

Correct Answer: B) Sea porcupines.

9. In natural selection, the selective agent is the

Correct Answer: D) Environment.

10. Scientists believe that animals evolved from:

Correct Answer: B) Protists.

11. Describes the twisted ladder-like shape of a DNA molecule

Correct Answer: C) Double Helix.

12. Which of the following is correct about human heart?

Correct Answer: B) The volume of both ventricles < the volume of both atria.

13. The muscle that helps mammals use their lungs is called

Correct Answer: A) Diaphragm.

14. A simple, automatic response to a sensory stimulus.

Correct Answer: B) Reflex.

15. How would you describe an organism that is "carnivorous" ?

Correct Answer: B) It primarily eats meat.

16. "True jellyfish" belong to Class .....

Correct Answer: A) Scyphozoa.

17. In the level of organization of life what is formed when the different systems functions as one.

Correct Answer: B) Organism.

18. Index fossils are useful b/c they tell the ..... age of rock layers

Correct Answer: B) Relative.

19. Among the molluscs, this class exhibits the least amount of cephalization.

Correct Answer: C) Class Bivalvia.

20. There are about ..... lymph nodes are found in body

Correct Answer: A) A 100.