Science, asked by manu145, 1 year ago

how did menstruation occur.

SakshiGouniyal: Miss. you can just google it ....

manu145: sorry

brainy20: what??

manu145: I don't understand

brainy20: what mam? I can help u

manu145: why are you calling me ma.

manu145: mam

brainy20: because I respect u

Answers

Answered by brainy20

3

After the egg has left the ovary, it travels through the Fallopian tube to the uterus. Hormone levels rise and help prepare the uterine lining for pregnancy. ... Then, hormone levels drop, and the thickened lining of the uterus is shed during the menstrualperiod.
hope it helps..if it helps mark my answer as brainliest answer

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