BIO 148 Study Guide - Midterm Guide: Comet Nucleus, Reproductive Isolation, Zygosity
Document Summary
Unit 5: evolution by natural selection learning objectives. Describe the types of evidence that darwin used to develop the theory of evolution by natural selection. Fossil evidence: some current species have similarities to species in the past, but with modifications. Evidence from artificial selection: populations can change their form over generations by human selection of traits, ex: pigeon breeding. Knew approx. date of earth (geology knowledge) Comparative anatomy structural homologies: another way to say this: anatomical similarities in species (homology) Struggle for survival: only some individuals live to pass on traits. Galapagos finches: several species on islands with different beak shapes, all with similarities to mainland finch population, beaks show variation. Didn"t have: genetic data, mendelian evidence, dna, computer simulations, not a lot of fossil evidence. Describe how artificial and natural selection can result in evolution. Determine which individuals in a population have the highest fitness when given information about their reproductive success. Don"t get caught up on minor characteristics.
