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| the science of describing, naming, and classifying organisms |
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| a system for giving each organism a two-word scientific name that consists of the genus name followed by the species name |
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| the level of classification that comes after family and that contains similar species |
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| the taxonomic category below the order and above the genus |
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| the taxonomic category below the class and above the family |
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| a taxonomic category containing orders with common characteristics |
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| the taxonomic group below kingdom and above class |
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| the highest taxonomic category, which contains a group of similar phyla |
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| in a taxonomic system based on rRNA analysis, one of the three broad groups that all living things fall intoin a taxonomic system based on rRNA analysis, one of the three broad groups that all living things fall into |
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a group of organisms than can reproduce only among themselves and that are usually contained in a geographic regionbiological species
a group of organisms than can reproduce only among themselves and that are usually contained in a geographic region |
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| the evolutionary history of a species or taxonomic group |
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| the process by which unrelated species become more similar as they adapt to the same kind of environment |
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| in comparisons of different organisms, describes features that are similar in function and appearance but not in structure or origin |
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| a phylogenetic classification system that uses shared derived characters and ancestry as the sole criterion for grouping taxa |
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| a character that in both groups evolved from a common ancestor |
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| a unique characteristic of a particular group of organisms |
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| a diagram that is based on patterns of shared, derived traits and that shows the evolutionary relationships between groups of organisms |
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| when taxonomists give varying degrees of importance to characters and thus produce a subjective analysis of evolutionary relationships |
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| a branching diagram that shows how organisms are related through evolution |
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