sal What changes are observed in the uterus if fertilisation does not occur.
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If the fertilization does not occur, then the uterine wall breaks down eventually and passes out of the body in the form of menstrual blood. Explanation: Once every month, the uterine wall gets constructed in preparation for providing space and nutrition for a fertilized egg.
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if the
Explanation:
if the fertilization does not occur,the thick wall of uetrus becomes ruptured and it results in the loss of blood
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