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the process whereby a particular change causes a response which reverses that change.
is one-millionth of a metre or one-thousandth of a millimetre (0,001 mm). Its unit symbol in the...
liquid which fills the spaces around the cells. It is derived from blood plasma but lacks the...
narrow external opening to the gill chamber.
hormone produced by the pancreas, which catalyses the conversion of glycogen to glucose.
the immunity an organism develops during its lifetime.