Q44Short answer
What changes are observed in the uterus if fertilisation does not occur?
Show answer
The thick and spongy lining of the uterus slowly breaks and comes out through the vagina as blood and mucus.
What changes are observed in the uterus if fertilisation does not occur?
The thick and spongy lining of the uterus slowly breaks and comes out through the vagina as blood and mucus.