BIOL 1202 : Exam 2
Document Summary
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. Bionomial nomenclature: the two part format of the scientific name of an organism, the bionamial name consists of, genus and species, these are always written in a different font (ex. Italics: genus is always capitalized; species is always lowercase ex. Hierarchical classification: linnaeus also introduces the system for grouping species in increasingly broad categories, keeping pipes clean of gas *fig 26. 3, kind professors cannot often fail good students (kingdom, phylum, class, order, family, genus, species) Linking classification & 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.
