Multiple Choice
Refer to the figure showing stages of gastrulation in the frog. 
Which of the following represents the correct sequence of events?
A) A, B, C, D
B) A, C, B, D
C) C, D, B, A
D) D, A, C, B
E) D, C, A, B
Correct Answer:
Verified
Correct Answer:
Verified
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