active transport. The movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is, from an area of lower concentration to one of higher concentration. Active transport requires the assistance of a type of protein called a carrier protein, using energy supplied by ATP.
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Biogeographic isolation is the separation of organisms of a species through geographical or biological forces.
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They use their antlers to fight and establish dominance.
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The phase of mitosis where chromatids are formed is <u>Metaphase</u>
