At the placenta,
A) oxygen enters the fetal circulation.
B) nutrients enter the fetal circulation.
C) nitrogenous wastes enter maternal circulation.
D) All apply.
Correct Answer:
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Q51: During the third week of development,which two
Q52: Failure of the superior neural tube to
Q53: During the eighth and ninth months,
A)the testes
Q54: A woman is clinically pregnant when fertilization
Q55: The umbilical cord contains
A)the fetal intestine.
B)two umbilical
Q57: During the eighth week
A)all organ systems have
Q58: The umbilical vein carries
A)waste and carbon dioxide
Q59: If the neural tube does not close
Q60: During the fifth through seventh months,
A)the sex
Q61: The tissues of the gonads are indifferent
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