Which of the following statements is true?
A) The embryo/fetus develops most of its organs during the preconceptual period.
B) The placenta blocks toxic substances from reaching the embryo/fetus.
C) Eight weeks after conception and until its birth,the developing human being is called a fetus.
D) A proper functioning placenta allows the mother's blood to mix with her fetus's blood.
Correct Answer:
Verified
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A)filters viruses and toxins from the
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