Carbon dioxide and oxygen are molecules that move across a cell membrane due to which important life process?

it's anything that aren't producers and consumers.

explanation:

you've got to be clear on what "this" is

plant because they survive by water, sunlight, ex.

explanation:

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.