[BIOL 172] - Final Exam Guide - Everything you need to know! (259 pages long)
Document Summary
Evolution can only occur if modifications are heritable. Origin of species - natural selection, darwin"s theory of evolution. Observations: members of a population vary in their traits, traits are inherited from parents to offspring, species produce more offspring than can survive in environment, many offspring do not survive. Inferences: individuals whose traits make them survive and reproduce better and will have more offspring (and those kids will have the same traits, favorable traits accumulate in population over gens. Natural selection - 1 cause of populations changing through time. Adaptations: inherited characteristics that enhance survival and reproduction in a specific environment. The placement of species into orders, classes, and so on, does not necessarily reflect evolutionary history. The first part of a binomial is the name of the genus to which the species belongs. Represents a hypothesis about evolutionary relationships regardless of how groups are named. Relationships are often depicted as a series of dichotomies, 2-way branch pts.
