1. What traits do Cnidarians have with all other animals?

2. Which would be considered more advanced, a hydra or a jellyfish? Give 2

reasons.

3. Contrast these body forms: polyp and Medusa

4. How do cnidarians protect themselves?

5. What is asexual reproduction?

Why is it an advantage for an organism to have asexual reproduction?

6. Since cnidarians do not have lungs/gill how would they get oxygen from

the water?

7. Describe any response to stimuli a cnidarian has.

8. What role do cnidarians have in the environment?

9. What job (s) do these parts of a cnidarian have?

a. cnidocytes

b. gastric cavity

c. Ectoderm-outer cell layer of a cnidarian

d. nematocyst

e. inner cell layer of a cnidarian

Question

Quincy Drake

Biology

11 October, 17:37

1. What traits do Cnidarians have with all other animals?

2. Which would be considered more advanced, a hydra or a jellyfish? Give 2

reasons.

3. Contrast these body forms: polyp and Medusa

4. How do cnidarians protect themselves?

5. What is asexual reproduction?

Why is it an advantage for an organism to have asexual reproduction?

6. Since cnidarians do not have lungs/gill how would they get oxygen from

the water?

7. Describe any response to stimuli a cnidarian has.

8. What role do cnidarians have in the environment?

9. What job (s) do these parts of a cnidarian have?

a. cnidocytes

b. gastric cavity

c. Ectoderm-outer cell layer of a cnidarian

d. nematocyst

e. inner cell layer of a cnidarian

+3

Answers (1)

Know the Answer?

Jimmy Potts · Answer 1

1) a cnidarian is another form of jellyfish. They survive using predator prey and live like any other aquatic animal would. However, they contain 2 membrane layers which makes them more complex creatures.

2) a hydra is more advanced. It contains 2 membrane layers and it's body wall is diploblastic meaning flexible like a jellyfish's. But a hydra consist of a single plane for its body symmetry, which classified it as more complex.