1) what is cell division is affected by

a)contact inhibition
b)hormones
c)nutrient availability
d)all of these

2) the series of events that occurs during the life of a cell is called

a) mitosis
b)metastasis
c)binary fission
d)the cell cycle

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.