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Biology  /  Bio 3231  ·  Atom · ~20 seconds

Osmoconformers versus Osmoregulators

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An osmoconformer matches its internal solute concentration to its environment; an osmoregulator actively maintains an internal concentration different from its surroundings, regardless of external change.

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A marine invertebrate osmoconforms with seawater; a freshwater fish osmoregulates to stay saltier than the surrounding water.

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Osmoconforming is not the absence of regulation — a conformer can still regulate specific solutes while matching total concentration.

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