Biology, asked by umeshabiballenahally, 9 months ago

why does menstruation occurs​

Answers

Answered by Ellyse
6

Answer:

A period releases the tissue grew to support possible pregnancy. It happens after each menstruation cycle pregnancy does not occur.

example: when an egg has not been fertilized attach itself to uterine wall . It occurs at age of 9 to 14. Usually comes after every 28 day. It it shows that a girl's body is working properly.

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