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.
Reaches earth by Radiation
The Inner layer of tissue is used for digestion.
It can either be mass or quantity
