Biology, asked by sahil9055, 1 year ago

why does menstruation occur??

Answers

Answered by aurorasweetpea610

The menstrual cycle occurs due to the rise and fall of hormones. This cycle results in the thickening of the lining of the uterus, and the growth of an egg, (which is required for pregnancy). ... If pregnancy does not occur, the lining is released in what is known as menstruation.

aurorasweetpea610: your welcome

Answered by Anonymous

menstruation occurs when the ova is not fertilised in females.

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