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Dichotomous identification key — OCR GCSE Combined Science B Definition

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Combined Science
Key terms
Dichotomous identification key

GCSE Combined Science · key term

Dichotomous identification key

Definition

A tool that identifies an organism through a sequence of choices between two alternative descriptions of its features.

Used by OCR

How each exam board covers it

OCR GCSE Combined Science B · J260

Specification B2 · Biology, Chemistry, Physics, Combined Science

Revise: Sampling Strategies

OCR Combined Science B past papers

Related key terms

Abiotic factor
Abundance
Biotic factor
Distribution
Ecosystem

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Percentage cover

Random sampling

Systematic sampling