Osmosis only talks about water molecules
Diffusion talks everything other then the water molecules.
So,
Osmosis : water molecules travel from a region of a higher water potential to a region of lower water potential through a partially permeable membrane via osmosis
Diffusion : Travels from a region of higher concentration to a region of lower concentration through a partially permeable membrane via diffusion
I think all of them are,polar bears have fur, penguins are suited for water and land, etc
A cell theory.
Since cells are the basic unit of structure in all organisms and also the basic unit of reproduction.
Answer:
Low rainfall and available water; waxy coating on leaves to prevent drying.
Explanation: