In the human body, muscle cells have an increased need for energy during excercise. to supply this energy the body will immediately increase

There are alot of things that will increase.

Explanation:

You could say, heart rate, or breathing. Or just increase in cellular respiration.

"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."

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.