PSYC 304 Chapter Notes - Chapter 6: Ecological Niche, Common Descent, Natural Experiment
Document Summary
Resources are scarce; those better adapted, survive and reproduce. Survival of the fittest : sexual selection: members of each sex exert selective pressures on the other in terms of both anatomical and behavioral features that favor reproductive success] Coined: dominant and recessive: hugo marie de vries: introduced the concept of mutation (quicker evolution) and pangenes, mutations: spontaneous changes in genes can be passed on to the next generation. Dna fails to copy accurately when a cell divides, it makes a copy of its dna and sometimes the copy is not quite perfect. In linnaeus"s system of classification, each species has two names: Genus: a group of species that resemble each other. Species: a group of individuals that can interbreed and produce fertile offspring. We are homo sapiens; contrast with homo neanderthalensis or homo hablis: kindly put clothes on, for goodness" sake . Newer methods aid in classifying animals and inferring evolution: taxonomy: the classification of organisms.
