Look at Figure 1. Which part of the image shows simple diffusion of molecules through the lipid bilayer of the cell membrane?
A. Parti
B. Part II.
C. Part III.
D. Both parts I. and II.

geologic time scale (for gradpoint) =)

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )

because photosynthesis could not occur (apex)