What changes are observed in the uterus
Question:

What changes are observed in the uterus if fertilization does not occur ? (CBSE Delhi 2017)

Solution:

Glands present in the mucosa of uterine endometrium begin to degenerate. This sloughs off the endometrial lining, releasing a lot of mucus and

blood. It is called menstruation. Menstruation lasts for 3-5 days.

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