PSYCH 280 Midterm: Evolution exam 1 study guide

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Start in african area and migrate out in groups. Thinkers have speculated a/b evolutionary processes for thousands of years. Things took off when scientific method gained traction (yet most scientists viewed species as fixed) Maupertuis (genes), erasmus darwin (common ancestors), lamarck (changes in your lifetime can be passed on) ^but they had no good evidence for a process/why. Kept a personal journal a/b his own ideas (natural selection) o o o o. Used selection theory & malthus" basic theory (w/ crisis point) Didn"t publish until 1859 (w/ alfred russel wallace) Was an argument a/b evolution at a phenotypic level. Phenotypic differences help some organisms survive & reproduce, but not other organisms o. A result of selection pressures (environment or situation creates pressure for a behavior to be functional) ^if these 3 principles are met: o o. Key marker of evolutionary success: out-reproducing others of your species (that"s it) o.