Ants from the genus pseudomyrmex live in bull's horn acacia trees, acacia cornigera. the ants will attack any predators of the tree. in return, the ants live protected in the thorns of the tree and eat the nectar and protein-rich secretions of the tree. this is an example of:

this is an example of mutualism because they help eachother

"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."

i think that it is c, d, and e, hope this