Diversity, Variation, and Evolution
9.1 Living Organisms Are Both Similar and Varied
9.2 All Organisms are Grouped into Species
9.3 Darwin Observed Variation Among Organisms
9.1 - 9.3 Review
Evolution and Natural Selection
9.4 Darwin Identified Selection as Force in Evolution
9.5 Darwin's Theory Changed Biology
9.4 - 9.5 Review
Evolution and Genetics
9.6 Evidence from Geneics Supports Natural Selection
9.7 Several Evolutionary Mechanisms Can Affect Populations
9.8 Isolation Is Needed for Speciation
9.9 Various Evolutionary Patern Occur
9.6 - 9.9 Review