1. life is made of different or forms of life.

Cells

Explanation: All living organisms are made of cells. It can be just one cell or made of millions of cells. Organisms are classified into unicellular and multicellular organisms. Cells contain all the organelles which help the cell to survive, reproduce and grow. In unicellular organisms, all the functions are performed by the single cell only. But in multicellular organisms, different cells are there to perform different functions.

"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."

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: