What structure produces progesterone and estrogen during pregnancy?
A) placenta
B) hypothalamus
C) anterior pituitary
D) posterior pituitary
E) ovaries
Correct Answer:
Verified
Q17: Which of the following is not derived
Q18: Which of the following is involved in
Q19: When does the heart begin to develop?
A)
Q20: Which of these is associated with pre-embryonic
Q21: The white,greasy,cheeselike substance that covers the fetus's
Q23: The _ is the first embryonic membrane
Q24: The first system in the body to
Q25: The blood of the mother and the
Q26: The yolk sac of the chick provides
Q27: The amnion is to the amniotic fluid
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