Answer:
glucose
Explanation:
Small nonpolar molecules, such as O2 and CO2, are soluble in the lipid bilayer and therefore can readily cross cell membranes. Small uncharged polar molecules, such as H2O, also can diffuse through membranes, but larger uncharged polar molecules, such as glucose, cannot.
Answer:
it creates opportunities and benefits for local communitys and it can maintain the health if an ecosystem. I think those are the two I may be wrong sorry if I am
The answer would be 1. original-tissue fossils and 2. many species were wiped out
