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sammy [17]
3 years ago
12

PLEASE I NEED THE ANSWER PLEASE

Biology
2 answers:
prisoha [69]3 years ago
7 0

Answer:

<h3 />

Explanation:

This phase starts on the first day of mensturation period . When ovum does not get fertilized , the high level of pogesterone hormone in the blood gets remarkably reduced .As a result , the endometrium layer of uterus gets degenerate and break down of capillaries . It causes a flow of blood from uterus for four days . This process of flow of blood along with the unfertilized egg is known as mensturation .

Olegator [25]3 years ago
6 0
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