BIOL 1202 Study Guide - Midterm Guide: Alphaproteobacteria, Proteobacteria, Facultative Anaerobic Organism
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) Taxonomy (the order division of organisms into categories based on a set of characteristics used to assess similarities and differences. The two part format of the scientific name of an organism. The binomial name consists of: genus and species, these are always written in a different font, genus is always capitalized; species is always lowercased. Linnaeus also introduced the system for grouping species in increasingly broad categories. 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. Interior nodes represent common ancestors taxa at tips represent living species/groups. Concept 26. 2: phylogenies are inferred from morphological and. Phylogenetic history can be inferred from similarities in homologous structures and genes when compared among organisms.
