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Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37C;a departure of a few

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Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only withi

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Cells cannot remain alive outside certain limits of temperature and much narrower limits mark the boundaries of effective functioning. Enzyme systems of mammals and birds are most efficient only within a narrow range around 37C; a departure of a few

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Todd: OK, hey, Marion, how are you feeling today? Marion: I'm realy tired. Kind of, I don't know, my throat's really scratchy, so maybe I'm coming down with something. Todd: Oh, no. That's terrible. Are you taking anything for it? Marion: Actually, I

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