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Author Question: Which characteristic(s) is (are) shared by both cnidarians and flatworms? A) dor (Read 521 times)

Charlie

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on: Aug 5, 2013
Which characteristic(s) is (are) shared by both cnidarians and flatworms?
A) dorsoventrally flattened bodies
B) true muscle
C) radial symmetry
D) a digestive system with a single opening
E) two of these


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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