Multiple Choice
The main difference between eumetazoans and parazoans is that
A) parazoans do not have an embryonic stage.
B) parazoans do not have cell layers.
C) parazoans do not have differentiated cells.
D) parazoans have no tissues or organs.
E) eumetazoans have a complex nervous system.
Correct Answer:

Verified
Correct Answer:
Verified
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