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Author Question: Which of the following is true of members of the phylum Cnidaria? A) They are no (Read 678 times)

Charlie

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on: Aug 5, 2013
Which of the following is true of members of the phylum Cnidaria?
A) They are not capable of locomotion because they lack true muscle tissue.
B) They are primarily filter feeders.
C) They have either, or both, of two body forms: mobile polyps and sessile medusae.
D) They may use a gastrovascular cavity as a hydrostatic skeleton.
E) They are the simplest organisms with a complete alimentary canal (two openings).


camila

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Reply #1 on: Aug 8, 2013
Answer has to be D, trust me!


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Charlie

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Reply #2 on: Oct 18, 2013
Wonderful, you were right, thank you so much.


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