Please hurry How does natural selection lead to evolution?
A. Every generation is a new species.B. The fittest organism cannot reproduce.C. New species learn the behavior of old species.D. Small changes add up over time.

B is the answer. I hope this is helpful :)

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

"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."