Biology Lab Practice Questions With Answers (Set 06)

1. What is the typical mode of reproduction in Hydra (sexual or asexual)?
2. Does hydra reproduce by fission, budding, mitosis or meiosis?
3. What type of body symmetry does Hydra have (radial or bilateral)?
4. How does Hydra acquire food?
5. How does Hydra protect itself from predators?
6. Does planarian have a body cavity?
7. Why is it advantageous for a predator such as planarian to have bilateral symmetry and a definite head region?
8. What type of cells must be present for flatworms to be able to respond to stimuli and move about?
9. Has cephalization occurred in earthworm?
10. Does the digestive system of earthworm show specialization of parts?
11. Does the earthworm have an open or a closed circulatory system?
12. Is the earthworm hermaphroditic?
13. Does the earthworm have a respiratory system?
14. How does the earthworm exchange gases?
15. Distinguish vertebrate from invertebrate.
16. Planarian has a bilateral symmetry. Explain.
17. Contrast the defense of a sponge with that of hydra.
18. What is the life-cycle function of the medusa stage in cnidarians?
19. Why would you expect an animal with bilateral symmetry to be more active than an animal with radial symmetry?
20. Name one anatomical feature (other than symmetry) that distinguishes a planarian from a hydra.
21. Name onother anatomical feature (other than symmetry) that distinguishes a planarian from a hydra.
22. Name an animal that is hermaphroditic.
23. Name an animal that is dioecious.
24. Why do you expect free-living round-worm to have a nervous system?
25. List two advantages of having a coelom.
26. What is a proteostome?
27. What is a deutereostome?
28. Name an animal with a closed circulatory system.
29. Name a respiratory organ.
30. Name an animal with an exoskeleton.

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