Question

define diffusion ? in biology ​

Answer 1

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Diffusion is the net movement of molecule from an area where they are at a higher concentration to areas where they are at lower concentration. This is due to the random movement of the molecules. The difference in the concentration of a substance between the area is called concentration gertia.

Answer 2

Answer:

Explanation:

“In biology Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration”