01:119:115 Lecture Notes - Lecture 1: Martinus Beijerinck, Paramecium, Branch Point
8 Jul 2015
School
Department
Course
Professor
Document Summary
Over 1. 4 million different species exist today (~1% of all species that have ever existed) A large number of species have many characteristics in common. The skeletal system of different species is used to find the common characteristics between species. Looking at the cilia of paramecium and the cilia of the windpipe we find similarities. I evolutionary histories are reconstructed and interpreted using taxonomy and phylogeny. Taxonomy: is the description, naming and classification of organisms: hierarchical system of classification used. Species is the most basic level of classification. Taxon is a grouping of organisms at any single level (ex. Genus name is capitalized; specvies epithtet is not ex: homo sapiens. Genus can be abbreviated ex: h. sapiens. Genus is unique and used only to specify all species within genus (14 species within genus homo. Ii evolutionary histories are reconstructed and interpreted using taxonomy and phylogeny.
