Exhausted from studying all night, you briefly close your eyes and your mind starts to wander. which brain waves would be most predominant in an eeg?

Alpha

Explanation:

Alpha waves that is generated by the brain are dominant during the time of quietly  flowering thoughts and during the time of meditative states.

It is the resting of the brain. It helps in the overall mental coordination, calmness, alertness, learning and integration.

The exhausted body has learned and is now resting and under resting condition the brain releases alpha waves.

"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."