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Under the Microscope 2026
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define “diffusion”
the movement of substances from an area of high concentration to an area of low concentration
describe “cell membranes”
semi-permeable, which allow certain substances (e.g nutrients) to diffuse into the cell and allow waste products to diffuse out of the cell.
The reproduction of new cells in organisms takes place by _________
cell division
define “semi-permeable”
barrier that allows only certain substances to pass through while blocking others.