Multiple Choice
Which of the following is a defining characteristic of the placenta?
A) It develops from only the mother's tissue.
B) It is reused for each of a woman's pregnancies.
C) It acts as an impermeable barrier that protects the developing fetus from toxins.
D) It acts as a filter that permits oxygen and nutrients from the mother to reach the embryo.
Correct Answer:

Verified
Correct Answer:
Verified
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