Nutrients enter a cell the concentration gradient by the process of
a) with; diffusion
b) against; osmosis
c) against; diffusion
d) with; endocytosis

A) with; diffusion

Explanation: What is diffusion? It is the movement of a substance from an area of high concentration to one of low concentration. Where does diffusion occur? Diffusion occurs in liquids and gases since their particles move randomly. It is a crucial process for living things because it is how substances move in and out of cells.

i thinking chemical change