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Question
The placentaa. forms from endometrial and extraembryonic tissues.
b. will cover about one-fourth of the inner uterine surface at full term.
c. does not normally intermingle fetal blood with maternal blood.
d. secretes progesterone and estrogens that maintain the uterine lining during the second and third trimesters.
e. does all of these.
Answer
This answer is hidden. It contains 1 characters.
Related questions
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b. B.
c. C.
d. D.
e. E.
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b. B.
c. C.
d. D.
e. E.