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Q. 6. Why does menstruation occur?
Answers (1)
If the egg of the female does not get fertilised with the sperm, then the thick and soft lining of the uterus is no longer needed, and thus it breaks.
Therefore, the lining of the uterus along with the blood vessels and the dead ovum (egg) comes out from the vagina in the form of blood called menstruation.
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