One function of the amniotic sac is to provide the developing fetus with
A) a constant temperature.
B) oxygen.
C) adequate nutrition.
D) fluids.
Correct Answer:
Verified
Q20: By the end of the third week,
Q21: Which of the following is correct?
A) The
Q22: By the end of the eighth week
Q23: The prenatal support system-the amniotic sac, placenta,
Q24: The embryo grows within the _, a
Q26: The exchange of materials between the fetus
Q27: The placenta serves as a natural filter
Q28: The period of the fetus begins
A) at
Q29: The principle change that occurs in the
Q30: At the _ month, fetal growth suddenly
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