1. : the final chemical messenger and "trigger" for muscle contraction. it binds to troponin. 2. : a neurotransmitter released at motor end plates by the axon terminals. 3. : it diffuses across the cell membrane resulting in depolarization. 4. : activates synaptic vesicles in axon terminals to fuse with plasma membrane of axon terminal. 5. : where the axon of a motor neuron connects with the muscle fibers. 6. : breaks down ach into its building blocks, rendering it inactive.

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

"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."