AP Environmental Scienceeasymcq1 pt

Tolerance to environmental stress is often depicted as

A.a bell-shaped curve of performance vs a gradient
B.a straight line increasing forever
C.a circle
D.a single number

Explanation

Core Concept

Performance rises to an optimum and falls toward lethal limits on both sides — the classic tolerance curve.

Correct Answer

Aa bell-shaped curve of performance vs a gradient

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