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.

Question

Quizplus · Accepted Answer

The cells of the inner cell mass organize into an oval sheet that is two layers thick, known as the blastodisc, around day nine of development.

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