When an accurate experiment is repeated by another scientist, the results
a) should be similar to those obtained originally.
b) will be identical every time the experiment is repeated.
c) should be completely different for a different scientist.
d) should vary quite a bit because of the difference in time between the completion of the experiments.

I think it may be A because the variables can't be handled the exact way every time or B if I'm just overthinking it because it says an accurate experiment.

"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 physical change is being made.