Examine the following diagrams. columns i and ii contain rock layers a, b, c, d, e and f. both columns were taken from the same dig site at different locations. which two layers are of approximately the same age?

The answer for this question is C) C & D

C

Explanation:

The answer is C) C&D

c. genetic engineering

explanation:

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.