During the fourth and fifth weeks
A) all organ systems have appeared.
B) ossification begins.
C) limb buds appear.
D) mother begins to feel movement.
Correct Answer:
Verified
Q40: The amnion
A)is the first site of blood
Q41: The placenta is composed of
A)chorionic villi.
B)uterine tissue.
C)fetal
Q42: During the third and fourth months,
A)lanugo covers
Q43: Maternal and fetal blood supplies mix to
Q44: The first system to be visually evident
Q46: The heart begins as two tubes that
Q47: The completion of a functioning placenta marks
Q48: Which hormone functions to maintain the corpus
Q49: The gender of the individual is determined
Q50: The umbilical arteries carry
A)waste and carbon dioxide
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