BIOL 3600 Study Guide - Midterm Guide: Monophyly, Paleozoic, Allele
Document Summary
Convergent evolution: two different species which evolve similar characteristics it makes it hard to distinguish between the two species even though they are in fact different species. Independently evolving traits shorter body, longer legs, longer tail, etc. 9:30 10:45 (september 27: multiple choice, short answer, close booked. Before darwin: lamarck"s hypothesis, young giraffes would stretch their necks. Darwinism: more fit giraffes would survive (these happened to be the giraffes with longer necks, evolution is change(s) over time, common descent, gradualism, evolution occurs at population levels, natural selection accounts for adaptations. What is phylogeny: branch of biology that deals with phylogenesis; visual representation of evolutionary history of populations, genes, or species, study of evolutionary relationships. What are the components of a phylogenetic tree: root. Internal node common ancestors: terminal node (tip) extant species, branch (lineage, clade two different species with shared common ancestor; grouping of ancestor and all of its descendants. Many good examples of adaptation in book.
