Biology / Bio 3491 · Atom · ~20 seconds
Temperature as a Distribution Constraint
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Temperature limits species distribution because enzymes and metabolism function only within a narrow range, so organisms must regulate internal temperature or inhabit environments holding them within it.
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Few organisms persist below 0°C or above 45°C, reflecting the narrow window most enzymes tolerate.
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Extremophiles surviving far outside this range are exceptions that confirm the rule — most life is narrowly constrained.