An animal that is not native to an environment is brought into the area. It has no predators in the new environment. In what ways do predators help the environment?
A.
Predators cause overpopulation because they are an additional species in the environment.
B.
Predators prevent overpopulation. However, overpopulation has a positive effect on the environment.
C.
Predators prevent overpopulation. Overpopulation can use up the resources in an environment.
D.
The presence of predators does not impact the environment in any way.

"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."

the question isn't complete here so i can't right an answer '_'