Define diffusion as the movement of atoms and molecules from an area of higher concentration to an area of lower concentration, and explain its importance.

Diffusion is the net passive movement of particles (atoms, ions or molecules) from a region in which they are in higher concentration to regions of lower concentration. It continues until the concentration of substances is uniform throughout

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse