Multiple Choice
In a frog embryo, gastrulation ________.
A) produces a blastocoel
B) occurs prior to cleavage
C) is impossible because of the large amount of yolk in the ovum
D) proceeds as cells roll over the lip of the blastopore
E) occurs within the inner cell mass that is embedded in the large amount of yolk
Correct Answer:

Verified
Correct Answer:
Verified
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