BIOL 1202 Midterm: Test 2 Notes
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. Hierarchical classification: linnaeus also introduced the system for grouping species in decreasingly broad categories, kingdom, phylum, class, order, family, genus, species, figure 26. 3. Classification (of human: kingdom- animalia, phylum- chordata, class- mammalia, order- primates, family- hominidae, genus- homo, species- h. sapiens. Linking classification & phylogeny: systematists depict evolutionary relationships in branching phylogenetic trees, each branch point (node) represents the divergence of two species, lines represent lineages, figure 26. 4. Which of the following represents the correct order of taxa, from the most inclusive to the least inclusive: domain, kingdom, phylum, class, order, family, genus.
