IB Biology Sub-topic A3.2 Definitions
This page contains our IB Biology definitions for sub-topic A3.2. By learning each one of these definitions, you will fully cover the content for IB Biology 'Classification & cladistics'.
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artificial classification
Classification of species on the basis of visual observation
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clade
A group of organisms that has evolved from a common ancestor
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cladistics
The study of classifying clades
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gradual divergence
The positive correlation between the number of differences between two species and the time since they diverged from a common ancestor
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natural classification
Classification of species on the basis of genetic similarity
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taxonomist
The scientist that studies species classification
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