Diffusion<span> is a spontaneous movement of particles from an area of high concentration to an area of low concentration. ... </span>Osmosis<span> is the spontaneous net movement of water across a semipermeable membrane from a region of low solute concentration to a more concentrated solution, up a concentration gradient.
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Well... if the predator would become extinct, the population of the hunted will grow and reproduce. There for it would increase.
It could quasatic monumim that comes from the middle of the earth