Sharp Chapter 22: Descent with Modification- A Darwinian View of Life Intro- natural selection, evolutionary adaptation, evolution 22.1 The Darwinian revolution challenged traditional views of a young Earth inhabited by unchanging species Lamarck’s Theory of Evolution- Jean-Baptiste de Lamarck, use and disuse, inheritance of acquired characteristics Concept Check- 2 22.2 In The Origin of Species, Darwin proposed that species change through natural selection The Origin of Species- descent with modification, artificial selection, Ernst Mayr, three inferences, five observations, populations possess an enormous reproductive potential, populations tend to be stable in size, resources are limited, individuals compete for survival, no two individuals are exactly alike, much variation is heritable, only the most “fit” individuals will survive, evolution occurs as advantageous traits accumulate Artificial Selection- artificial selection Summary of Natural Selection- natural selection, adaptation, fitness Concept Check- 1,2 22.3 Darwin’s theory explains a wide range of observations The Evolution of Drug Resistant HIV Homology, Biogeography, and the Fossil Record- homology, homologous structures, divergent evolution, comparative embryology, ontology, phylogeny, vestigial organs, biogeography, convergent evolution, analogous structures, fossil record Concept Check- 1,2,3 Testing Your Knowledge 1, 2, 3, 4, 5, 6, 7, 8, 9, 10