PSYC 280 Chapter Notes - Chapter 6: Symmetry In Biology, Invertebrate, Encephalization
14 Feb 2017
School
Department
Course
Professor
Document Summary
Naturalists doubted that each species were created separately. Evolution is a process of modification that became clear that animal species are continually changing across generations gradually gain/lose features and over time can become new species. Charles darwin + alfred russel wallace: described process of evolution by natural selection. 4 main observations: reproduction will tend to increase a pop. Individuals of a given species are not identical: some variation among individuals is inherited, not all offspring of a given generation survive to reproduce. Variations among individuals affect probability of survival to reproduce pass on individual char. Individuals suited to conditions more successful in reproducing. Concept of evolution by natural selection = most important organizing principle in life sciences. Psychological functions are as much products of evolution as organs of the body. Selective pressures for both sexes in terms of anatomical + behavioral features that favor reproductive success.
