The placenta serves as a natural filter that keeps __________ diseases, germs, and impurities from being passed from the mother to the baby.
A) all
B) many, but certainly not all
C) very few
D) immunities to
Correct Answer:
Verified
Q22: By the end of the eighth week
Q23: The prenatal support system-the amniotic sac, placenta,
Q24: The embryo grows within the _, a
Q25: One function of the amniotic sac is
Q26: The exchange of materials between the fetus
Q28: The period of the fetus begins
A) at
Q29: The principle change that occurs in the
Q30: At the _ month, fetal growth suddenly
Q31: The average fetus is born _ days
Q32: In the Western world, the average newborn
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