Failure of fertilisation leads to menstruation. Explain
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when the egg is not fertilised ng the sperm the egg goes and become a thick lining in the uterus. fore releasing of this lining it goes from the vagina as blood fromm 5to 6 days
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Fusion of male gamet(sperm) and female gamet(ovum) is known an fertilisation.
If the ovum does not fuse with sperm then the fertilisation does not occur and this ovum expels out through vagina with some blood. This is known as menstruation.
Hence failure of fertilisation leads to menstruation.
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