Question

question 4
the movement of molecules from areas of high concentration to areas of low concentration.
homeostasis
diffusion
active transport
osmosis

Explanation:

Diffusion is defined as the movement of molecules from an area of high - concentration to an area of low - concentration. Homeostasis is the maintenance of a stable internal environment. Active transport moves molecules against the concentration gradient. Osmosis is the diffusion of water across a semi - permeable membrane.

Answer:

B. diffusion