Diffusion is the movement . of molecules to an area of lower concentration

of molecules through the cytoplasm of a cell

of water through a selectively permeable membrane

of molecules to an area of higher concentration

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

Which process of living things produces water that enters the water cycle