AP BIOLOGY

Detailed explanation-1: -Diffusion is the spontaneous movement of a substance from a region of high concentration to a region of low concentration. It takes place in gases as well as liquids. Solids can only diffuse when they are in solution.

Detailed explanation-2: -In liquids, diffusion occurs. Diffusion can occur in liquids as well. Because particles in liquids may flow around and around each other, they eventually get evenly mixed.

Detailed explanation-3: -Diffusion can take place in gases, liquids, or solids. In solids, particularly, diffusion occurs due to thermally-activated random motion of atoms-unless the material is at absolute zero temperature (zero Kelvin), individual atoms keep vibrating and eventually move within the material.

Detailed explanation-4: -Diffusion in liquids and gases The molecules that make up gases move more quickly than the molecules in liquids, and so the diffusion that takes place in liquids is slightly slower. But, the process is the same. Molecules randomly move from an area where they are most concentrated, to areas of lesser concentration.

Detailed explanation-5: -The molecules move from a region of higher concentration to a region of lower concentration until the concentration becomes equal throughout. Liquid and gases undergo diffusion as the molecules are able to move randomly.