Multiple Choice
During metamorphosis, echinoderms undergo a transformation from motile larvae to a sedentary (or sometimes sessile) existence as adults. What differentiates echinoderm adults, but not their larvae? Adults should
A) be diploblastic.
B) have radial symmetry, or something close to it.
C) lack mesodermally derived tissues.
D) A and B only
E) A, B, and C
Correct Answer:

Verified
Correct Answer:
Verified
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