Lab 7 Phylogenies

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6 Terms

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Genealogy

how you are connected by descent to your ancestors

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Phylogeny

how populations or species are connected by descent to a common ancestor species

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Principle of Parsimony

the simplest explanation of data is the most accurate

the tree with the fewest branches= fewest number of evolutionary innovations

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Morphological Data

data comes from previous information

morphological characteristics can be unreliable for constructing phylogenies

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analogous structure

structures may look similar, but arose independently

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Homologous structures

structures may look different but arose due to a common ancestor