Various molecules have to get from where they are to where they are needed and can be used. Diffusion is just a random movement of molecules. Oxygen is not PUT into the blood cells, for example. It is brought into a close enough proximity to the red blood cells that DIFFUSION is likely to bring it close enough to be captured by the cells to be carried to the other cells. There, it will be released and DIFFUSE to the cells and be used (by the mitochondria) to complete the necessary oxidative processes.
we cant
no you really cant sorry
oxygen...we cant live without it
One of the living things is trees. Without trees we can not breathe.
simple diffusion, facilitated diffusion, and osmosis (water)
i cant live without you
i cant live without u
They can and did live quite happily without it.
you cant live without water or air
They can.
insulin
because
Gravity
we cant
no you really cant sorry
You Cant Live Without Your Liver!
you cant, they r too gud