Multiple Choice
A menstrual flow results from _____.
A) the implantation of a fertilized ovum in the endometrium
B) a decrease in progesterone and estrogen levels
C) the release of gonadotropin-releasing hormone by the hypothalamus
D) the production of prostaglandins by the uterus
E) the release of progesterone and estrogen by the corpus luteum
Correct Answer:

Verified
Correct Answer:
Verified
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