01:119:115 Study Guide - Final Guide: Continental Drift, Genetic Drift, Panmixia
Document Summary
Jean baptiste de lamarck- studied fossils, first to propose evolution. Use vs. disuse and inheritance of acquired characteristics. Darwin"s origin of the species by natural selection. Natural selection- mechanism for evolution: discovered by observing variation and overpopulation. Inferring differential reproduction success and unequal abiliy to s&r: the better adapted individual more likely to survive and reproduce, Survival of the fittest (fit- ability to have offspring: over a long time, dependent on time and place, requires genetic variation, and heritable phenotypic variation. Descent with modification : we are all linked by a common ancestor, each generation with slightly different features emergence, select for inheritable favorable traits (enhance survival) Natural selection is the process of editing, not creating nor acquiring. The most successful individual is the one who produced the most offspring, even if the individual themselves are really old and going to die. Darwin noted- humans have modified other species by selection and breeding individuals with desired traits artificial selection.
