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Nested hierarchy

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This is an old revision of this page, as edited by Rkitko (talk | contribs) at 23:26, 12 June 2008 (stub, -botany categories: doesn't seem to be specific to botany). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

A nested hierarchy is the name given to the hierarchical structure of "groups within groups" used to classify organisms. For example, a species is a subset of a genus, which is a subset of a family, which is a subset of an order - and so on.
This structure is assumed to reflect the evolutionary pattern of descent with modification.