BIO 1130 Study Guide - Midterm Guide: Archaea, Antimicrobial Resistance, Hermaphrodite

• School: University of Ottawa
• Department: Biology
• Course: BIO 1130
• Professor: Jon Houseman

Document Summary

No longer share the same gene pool. Each new branch creates a clade: clade: group of organisms with a common ancestor. A clade located within a clade is said to be nested within that clade. Biological: mayer b. members of populations that actually or potentially interbreed in nature, not according to similarity of appearance, problem: appearance. Phylogenetic: species is a tip on a phylogeny, The smallest set of organisms that share an ancestor and can be distinguished from other such sets: ring species is a single species. Encompasses lots of physical trait variation: also known as: cladistics. Morphospecies: all individuals share a measureable trait to distinguish them from other species, diagnostic characteristics, works well in isolation, example of error: elephants, appeared the same, were actually two different species, lived in different styles of habitats. Allopatric: populations of a species become geographically isolated, gene flow stops, small population = founder effect, vicariance. Genetic change reproductive barrier (mutant : parent)