Living things need... - Food, Water, Gases, Nutrients, In DIFFUSION, molecules move from ... - high to low concentration, A cell membrane is... - selectively permeable, Selective permeability means ... - some things can cross it but other things cannot cross, Passive transport does note require - energy, Osmosis - the diffusion of water, Equilibrium is achieved when - the inside and the outside concentrations are equal,

Diffusion and Osmosis

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النمط البصري

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