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At About Day Nine of Development of the Blastocyst, the Cells

Question 8

Multiple Choice

At about day nine of development of the blastocyst, the cells of the inner cell mass are organized into an oval sheet that is two layers thick, called the ________.


A) amnion
B) yolk sac
C) endoderm
D) blastodisc
E) None of the answers are correct.

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