Question

diffusion is an example of -------------------------- transport. passive both active and passive active none of the above

Explanation:

Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. It does not require energy input, which is the characteristic of passive transport. Active transport requires energy (usually in the form of ATP) to move molecules against their concentration gradient. Since diffusion occurs down the concentration gradient without energy expenditure, it is passive transport.

Answer:

A. Passive