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| The science of classifying organisms and assigning each organism a universally accepted name. |
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| The process of assigning each organism a 2-part name. |
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| The combination of the genus and species names for an organism. |
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| Grouping of similar species. |
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| Individuals which can breed and produce fertile offspring. |
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| Group of genera that share many characteristics. |
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| Group of families that are similar. |
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| A group of similar orders. |
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| Largest of the categories; many related phyla. |
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| The evolutionary history of a species, or group of species over time. |
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| Help scientists determine where species belong. |
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| Structures in an organism that have lost all or most of their function. |
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| A diagram used to show evolutionary relationships among a group of organisms. |
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| Characteristics that appear in recent parts of a lineage but not in its older members. |
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| A tool used for determining the identity of something by observing physical traits. |
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| Any inherited characteristic that increase an organism's chance of survival. |
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| The process by which modern organisms have descended from ancient organisms. |
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| The inability to of a species to breed successfully with related species due to geographical, behavioral, physiological, or genetic barriers or differences. |
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