Which of the following is a statement of the first law of thermodynamics?

a) energy cannot be created or destroyed.
b) the entropy of the universe is decreasing.
c) the entropy of the universe is constant.
d) energy cannot be transferred or transformed

For this case what you should know is the statement of the first law of thermodynamics.

By definition, we have to:

In equation mode we have to:

Where,

A) Energy can not be created or destroyed.

"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."