Chapter 6 - Natural selection 2 steps-Variation-Selection...

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CHAPTER 6 ORGANIC EVOLUTION
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Outline Origins of Darwinian Theory Parts of Darwinian Theory Revision of Darwinian Theory Microevolution Macroevolution
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Origins of Darwinian Theory Lamarck Acquired characteristics Lyell Uniformitarianism Malthus Population growth Limited resources
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Origins of Darwinian Theory Darwin The Beagle Galapagos Islands Artificial selection Wallace
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Parts of Darwinian Theory Perpetual change Fossil record Common descent Homologies = similarities in a common trait Phylogenies = evolutionary history of a group
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Figure 06.co
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Figure 06.24
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Parts of Darwinian Theory Multiplication of species Species = group of interbreeding organisms that are reproductively isolated from other groups Speciation = creation of new species
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Parts of Darwinian Theory Gradualism Phyletic gradualism = changes occur slowly Punctuated equilibrium = abrupt changes followed by long period of stasis
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Figure 06.11
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Parts of Darwinian Theory
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Unformatted text preview: Natural selection 2 steps-Variation-Selection Based on-5 observations-3 inferences Revision of Darwinian Theory Neo-Darwinism Darwinian theory Mendelian genetics Microevolution Variation Polymorphism = genetic variation Allelic frequency = number of each type of allele in a population Hardy-Weinberg equilibrium = allelic frequencies do not change over time Microevolution Variation Changes-Genetic drift-Nonrandom mating-Mutation-Migration-Natural selection Macroevolution Speciation Allopatric speciation-Geographic isolation Reproductive barriers Mass extinction Permian Cretaceous Figure 06.32 Review Origins of Darwinian Theory Parts of Darwinian Theory Revision of Darwinian Theory Microevolution Macroevolution Reminders Read Chapter 6 Exam 2 Lab Exam 1 No lab 2/21...
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Chapter 6 - Natural selection 2 steps-Variation-Selection...

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