Why is it a good thing to have a lot of genetic variation within a population or species? Group of answer choices

A. If conditions change, you have a greater chance of someone having adapatations that allow them to survive and reproduce.

B. You will produce the most attractive offspring.

C. You will produce the most offspring.

A. If conditions change, you have a greater chance of someone having adaptations that allow them to survive and reproduce.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."

a- all cells come from pre-existing cells