Multiple Choice
Which of the following correctly describes gastrulation in frog embryos?
A) causes the ectoderm and endoderm layers to invert
B) occurs along the primitive streak in the animal hemisphere
C) proceeds by involution as cells roll over the lip of the blastopore
D) 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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