Chapter 18: Classification

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the branch of biology that names and groups organisms according to their characteristics and evolutionary history


Linnaeus's largest category. The two are animal and plant


subset of a kingdom, in the animal kingdom


subset of a kingdom, in the plant kingdom


a subset of a phylum or division


each subset within a class


subset of an order


subset of a family


the smallest grouping, contains only a single organism type

Species name

also called the scientific name; has 2 parts

Species identifier

the second part, usually a descriptive word

Binomial nomenclature

the system of two-part names


further division of a subset of a species


varieties of animal species that occur in different geographical areas


evolutionary history of an organism

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