BIOL 1F90 Lecture Notes - Lecture 18: Cytochrome C Oxidase, Paraphyly, Reptile
12 Jan 2016
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Apo-: away from, formed from bi-: two clade: group of taxa. Gen: that which produces mono-: one; single; alone morph-: form (shape of a thing) plesi-: close; near poly-: many nomenclature: name; act of naming para-: beside, next to phylo-: tribe, race, phylum sym/syn-: with, together. Taxonomy: science of describing, naming, and classifying livingand extinct organisms and viruses. Systematics: study of biological diversity and the evolutionary relationships among organisms, both extinct and modern. Taxonomic groups are now based on hypotheses regarding evolutionary relationships derived from systematics. Each group at any level is called a taxon. Domain highest level; all life belongs to one of 3 domains; bacteria, archaea, and. All life originated from primordial prokaryotic cells between 4 and 3. 5 bya. Soon after, 2 prokaryotic domains, bacteria and archaea, diverged. Rules for naming establishd and regulated by international associations. Phylogeny evolutionary history of a species of group of species. To propose a phylogeny, biologists use the tools of systematics.
