Which of the following events occurs at the same time that menstruation is beginning?

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    The levels of LH and FSH are "spiking."
    The levels of estrogen and progesterone in the ovarian hormone cycle are on the rise.
    The corpus luteum is degenerating.
    Ovulation is occurring.
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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The corpus luteum is degenerating.
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)

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