Diffusion: Movement of gases such as oxygen and carbon dioxide, food coloring disperses throughout a beaker , perfume is sprayed and the odor spreads from one part of the room to the other, Osmosis: Movement of water across the cell membrane, Water diffuses out of your cells. , A raisin swells in water, Both: Passive transport, Movement of things from HIGH to LOW, No energy required, Molecules move down a concentration gradient,

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