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bio ch 26 notes - BioCh. 19:37 Ex: fromlizardswithlegs

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Bio Ch. 26- Phylogeny and Tree of Life 19:37 Phylogeny- evolutionary history of a species or group of species. Ex: phylogeny of snakes an lizards indicates that both scaly-foot and snakes evolved  from lizards with legs Systematics- classification of organisms via determining their evolutionary  relationships - homologous characteristics are due to common ancestry Taxonomy- naming and classification of organisms Binomial- 2 part format for naming organisms Genus- first part of binomial  Specific epithet- second part of epithet Species, genus, family, order, class, phylum, kingdom, domain This placement doesn’t always reflect evolutionary history PhyloCode- approach that names groups that include a common ancestor and all  of its descendants Branch point- where there is a divergence of 2 evolutionary lineages from a  common ancestor
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