Answer:
well childhood disease is diseases that happens in childhood like chickenpox and etc
I hope it helps
C lol trying to get points
Answer:
if a molecule is too large it cannot pass. also it depends on the concentration of a specific substance inside the cell. similarly, if a molecule is polar it cannot penetrate the phospholipid bilayer.
there are proteins that work as channels and pumps that allow these molecules to pass
Explanation:
Answer:
organism that will die off
Explanation:
because
