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Chapter 17
Section 1
| Term | Definition |
|---|---|
| the variety of organisms considered at all levels, from populations to ecosystems | biodiversity |
| the science of describing, naming, and classifying organisms | taxonomy |
| any particular group within a taxonomic system | taxon |
| in a traditional taxonomic system, the highest taxonomic category, which contains a group of similar phyla | kingdom |
| in a modern taxonomic system, the broadest category; the category that contains kingdoms | domain |
| in a traditional taxonomic system for organisms other than plants, the category contained within a kingdom and containing classes | phylum |
| in a traditional taxonomic system for plants, the category contained within a kingdom and containing classes | division |
| in a traditional taxonomic system, the category contained within a phylum or division and containing orders | class |
| in a traditional taxonomic system, the category contained within a class and containing families | order |
| in a traditional taxonomic system, the category contained within an order and containing genera | family |
| in a traditional taxonomic system, the category contained within a family and containing species | genus (plural, genera) |
| a group of organisms that are closely related and can mate to produce fertile offspring; also the level of classification below genus and above subspecies | species |
| a system for giving each organism a two-word scientific name that consists of the genus name followed by the species name | binomial nomenclature |
| a taxonomic classification below species that groups organisms that live in different geographical areas, differ morphologically from other populations of the species, but can interbreed with other populations of the species | subspecies |