Not all molecules can diffuse across biological membranes, because these membranes are often formed from lipids that are lipid and cannot develop hydrogen bonds with charged molecules.

What is the relation ship between structure and function in an organism

Were does condensation occur? a) hydroshereb) lithosherec) boishered) atmosphere

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one