The muscle cells of a basketball player are examined after an injury that required her to be placed on the injured list. Muscle cells require a lot of energy to function. The number of organelles in her cells are counted. Which of the following findings are most likely to occur after 6 months of required rest and inactivity? The thickness of the cell membrane has decreased due to the need for materials going into and out of the cell during healing.

The number of mitochondria has decreased due to long period of rest.

The size of the vacuoles has increased due to the need for healing in the cells.

The amount of cytoplasm has increased due to the long period of rest.

"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."

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands

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