7) farmers use fertilizers to plants grow better. fertilizers are made of many chemicals. how can fertilizers be harmful to other living things in the area of the farm?

Fertilizers can pollute ground water.

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.

the answer is a) cell division.

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