Chapter 18 vocab

Binomial nomenclature

• Classification system in which each species is assigned a two-part scientific name

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Genus

• A group of similar species

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Systematics

• study of the diversity of life and the evolutionary relationships between organisms

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Taxon

• group or level of organization into which organisms are classified

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family

• group of similar genera

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order

• a group of families

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Phylogeny

• The study of evolutionary relations among organisms

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Derived character

• Trait that appears in recent parts of linage, but not in its older members

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Cladogram

• Diagram that shows the evolutionary relationships among a group of organisms

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Domain

• Most inclusive taxonomic category; larger than the kingdom

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