List the levels of organization within environments. (Community, species, habitat, ecosystem, population)
Please help one of my last questions

population → community → ecosystem → biosphere

"Habitat" doesn't quite fit in this list. "Species" likewise doesn't fit well, but I suppose it could go at the start of the list.

Species: members of the same, well, species. Homo sapiens, for example; a group of humans is a species.

Population: similar to species, but used to describe an individual group of organisms. Like if there are 30 dogs in my house, that's a population of 30, though the species probably is made up of thousands.

Community: a group of biotic factors (remember, living, not nonliving) in the same space.

Ecosystem: a combination of all those biotic factors, plus abiotic factors like rocks, wind, sun, et cetera

Biosphere: the whole Earth.

the answer will be a) proteins i believe

"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."