What is chemistry?

a) the study of matter and how it changes

b) the study of living things and how they change

c) the study of matter and how it moves

It is the study of matter and how it changes

Explanation:

Consider the chemicals and the way they are altered when combined with each other or when they are under different conditions.

I would say either A or C

Explanation: Because the study of living things and how they change is biology

answer; the above statement is (true);

"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."