Term
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Definition
| Evolutionary relationships among species |
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Term
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Definition
| The phylogenetic classification of organisms |
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Term
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Definition
| Similarity due to common ancestry; do not necessarily have a common function |
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Definition
| Similarity due to a common function rather than to common ancestry; can result from convergence, reversal, or parallel evolution |
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Term
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Definition
| Evolutionary change in two or more lineages such that corresponding features which were formerly dissimilar become similar |
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Term
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Definition
| Evolutionary change in two or more lineages such that corresponding features become similar due to a return to an ancestral condition |
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Term
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Definition
| Evolutionary change in two or more lineages such that derived features undergo equivalent alterations |
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Term
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Definition
| Dichotomous branching trees that produce a nested series of groups based on shared derived characters |
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Term
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Definition
| A group of organisms composed of a common ancestor and all of its descendants |
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Term
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Definition
| A group of organisms composed of a common ancestor and some but not all of its descendants; often denoted with quotation marks |
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Definition
| A character that is changed ("derived") from its preexisting ("primitive" or "ancestral") condition |
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Term
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Definition
| A shared derived character |
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Term
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Definition
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Term
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Definition
| A character, shared by a group of organisms, that is found in those organisms' common ancestor (i.e. a shared ancestral character) |
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Term
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Definition
| Synapomorphy (shared derived character) |
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Term
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Definition
| Plesiomorphy (ancestral character) |
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