Biology, asked by mansiindora95, 1 year ago

why does mwnsuration occur

Answers

Answered by nandana0000
0
hello mate,
☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃☃
❣when the egg does not get fertilised.
❣the uterus wall breaks and the thick and soft uterine wall along with the dead ovum and blood vessels comes out of the vagina in the form of blood.
❣this occurs one in 28 days in a mature female
thnq
#nandana
Answered by NeverMind11
0
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 asmenstruation.
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