Which conditions are required for natural selection select three options

A. Population have genetic variation.

C. Environmental conditions remain stable.

D. Nature selects favorable adaptations.

Explanation:

Natural selection is a type of selection which occurs naturally without the intervention of humans. There are some conditions for natural selection. If these conditions are not present, natural selection will not occur. Favorable conditions for natural selection are the availability of optimum temperature, humidity and other environmental conditions. The organisms have variations in genetic makeup and the organism is fit.

i am positive it is c. condensing but i may be wrong

"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."