. Describe, in brief, the changes the uterus undergoes

(i)  to receive the zygote.

(ii)   if zygote is not formed.


Best Answer

Ans. (i) The  inner  lining  of • the  uterus   becomes  thick  and  soft  with  lots  of  blood capillaries before release of a fertilised egg (zygote). The uterus, has to keep this zygote for further development and supply it with food, oxygen, etc.

(ii) If no fertilization occurs then the thick uterus lining breaks down along .with its bloods vessels in the form of vaginal bleeding called menstrual flow.

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