the integumentary system has multiple roles in homeostasis, including protection, temperature regulation, sensory reception, biochemical synthesis, and absorption. all body systems work in an interconnected manner to maintain the internal conditions essential to the function of the body.
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a catalyst is a chemical that increases the rate of a chemical reaction without itself being changed by the reaction. the fact that they aren't changed by participating in a reaction distinguishes catalysts from substrates, which are the reactants on which catalysts work. enzymes catalyze biochemical reactions.
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