Tolerance range

Definition

The range of environmental conditions within which an organism can survive and reproduce.

Used by AQA

Specification 4.7.1.2 · Paper 2

Beyond its tolerance range, it may be unable to live there at all.
Revise: Abiotic Factors

1
Use the direction shown by the data. Do not automatically assume that increasing an abiotic factor always benefits an organism; many species have an optimum and a limited tolerance range.

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GCSE Biology · key term

The range of environmental conditions within which an organism can survive and reproduce.

Used by AQA

Specification 4.7.1.2 · Paper 2

Beyond its tolerance range, it may be unable to live there at all.
Revise: Abiotic Factors

1
Use the direction shown by the data. Do not automatically assume that increasing an abiotic factor always benefits an organism; many species have an optimum and a limited tolerance range.

Create a free account to read GCSE Biology revision notes for your exam board and track your progress.