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1 vote
Menstruation is triggered by a drop in the level(s) of

2 Answers

4 votes

Answer:

Estrogen?

Step-by-step explanation:

answered
User Mdedetrich
by
9.0k points
5 votes
Menstruation is triggered by a drop in the levels of progesterone. It is a hormone in the body that functions to regulate and stimulate a number of functions especially in females. It is a sex hormone and has an important role in pregnancy.
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