BI111 Study Guide - Midterm Guide: Sister Chromatids, Parapatric Speciation, Systematics
Document Summary
Taxonomy: describes and names species (established by carl linnaeus) Binomial nomenclature: gives a species two names, the first for genus and second for species. A group of organisms that are similar to each other but biologically different from other groups of organisms and evolving along a lineage. Within each species there may be multiple populations made up of organisms of a single species. Scientists compare: the way the organisms look, the way each organism behaves in its environment, the genetic and physiologic aspects. Biological species concept: method for grouping organisms into distinct species. The biological species concept states that organisms are members of the same species if they fulfill the following criteria: They cannot produce viable and fertile offspring with members of other. If organisms from two sexually reproducing populations do not fulfill these criteria, then scientists describe these populations as reproductively isolated and they are designated as a different species.
