A) Corpus luteum will disintegrate
B) Estrogen secretion further decreases
C) Primary follicle starts developing
D) Progesterone secretion rapidly declines
Correct Answer: B
Solution :
If mammalian ovum remains unfertilized. The the corpus luteum starts degenerating. The level of progesterone in blood declines, After menstrual flow, another ovarian follicle is stimulated by FSH and the next cycle begins.
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