The ____ is a watertight sac in which the developing child floats during its prenatal development.
A) postpartum
B) lanugo
C) vernix
D) amnion
Correct Answer:
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Q6: The placenta serves as a semipermeable barrier
Q7: Which of these is NOT among the
Q8: During the period of the embryo, the
Q9: The embryo develops from the embryonic disk,
Q10: The _ is a support structure that
Q12: The prenatal period lasting from conception to
Q13: Implantation occurs about two _ following conception.
A)hours
B)days
C)weeks
D)months
Q14: Out of every four zygotes, _ fail(s)
Q15: The proper place for the blastocyst to
Q16: Identify the correct prenatal sequence of periods,
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