When a starfish, a type of echinoderm, is resting on the seafloor, its _______ face(s) the seafloor, whereas the ______ is on the upper surface of the animal.
A) mouth; anus
B) tube canal; mouth
C) tube feet; anus
D) Either a or b
E) Either a or c
Correct Answer:
Verified
Q35: Use the following to answer questions:
Match the
Q36: Use the following to answer questions:
Match the
Q37: The echinoderms and hemichordates are collectively known
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A) evolved
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