BIOL 1002 Chapter : CH 23 Outline Spring 2013
Document Summary
Chapter 26: phylogeny and the tree of life: phylogeny: the evolutionary history of a species or group of related species, systematics: an analytical approach to understanding the diversity and relationships of organisms. Concept 26. 1: phylogenies show evolutionary relationships: taxonomy: the ordered division of organisms into categories based on a set of characteristics used to assess similarities and differences. Binomial nomenclature: the two part format of the scientific name of an organism, the binomial name consist of: These are always written in a different font (e. g. , italics) Genus is always capitalized; species is always lowercase. Carolus linnaeus: linnaeus also introduced the system for grouping species in increasingly broad categories, keep pipes clean of gas, kindly professors cannot often fail good students. Linking classification and phylogeny: systematists depict evolutionary relationships in branching phylogenetic trees, each branch point (node) represents the divergence of two species, deeper branch points represent greater amounts of divergence, lines represent lineages.
