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| the earliest classification scheme categorized living things as either |
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| Carolus Linnaeus designed |
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| A much simpler system than the polynomial for the naming of organisms was developed |
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| Linnaeus assigned organisms a two-part name called a |
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| the branch of biology that identifies and names such groups |
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| genera with similar properties are grouped together |
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| families that share similar characteristics |
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| orders with common properties |
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| classes with similar characteristics |
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| phyla are assigned to one of several gigantic groups |
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| kingdoms are sometimes assigned to an additional level of classification |
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| How many species have been named? |
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| How many species have been named? |
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| the evolutionary history of an organism and its relationship to other species |
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| Systematics is the study of and |
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| reconstruction of phylogenetic trees |
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| the systematic approach that infers phylogeny according to similarities derived from a common ancestor |
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| characters that are present in a group of organisms that arose from a common ancestor that lacked the character |
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| is a group of organisms, related by descent, that share a derived character |
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| comparative information about relative relationships |
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| organisms that are closer together on a cladogram simply share |
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| a more recent common ancestor than those that are farther apart |
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