Card 14 / 32: The placenta is formed from ________.
A)
the embryo's mesenchymal cells
B)
the mother's endometrium only
C)
the mother's endometrium and the embryo's chorionic membrane
D)
the mother's endometrium and the embryo's umbilical cord
Answer:
C) the mother's endometrium and the embryo's chorionic membrane
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