<Li> Introduction to evolution </Li> <Li> Evidence of common descent </Li> <Tr> <Td> Processes and outcomes (show) <Ul> <Li> Population genetics </Li> <Li> Variation </Li> <Li> Diversity </Li> <Li> Mutation </Li> <Li> Natural selection </Li> <Li> Adaptation </Li> <Li> Polymorphism </Li> <Li> Genetic drift </Li> <Li> Gene flow </Li> <Li> Speciation </Li> <Li> Adaptive radiation </Li> <Li> Co-operation </Li> <Li> Coevolution </Li> <Li> Divergence </Li> <Li> Convergence </Li> <Li> Parallel evolution </Li> <Li> Extinction </Li> </Ul> </Td> </Tr> <Ul> <Li> Population genetics </Li> <Li> Variation </Li> <Li> Diversity </Li> <Li> Mutation </Li> <Li> Natural selection </Li> <Li> Adaptation </Li> <Li> Polymorphism </Li> <Li> Genetic drift </Li> <Li> Gene flow </Li> <Li> Speciation </Li> <Li> Adaptive radiation </Li> <Li> Co-operation </Li> <Li> Coevolution </Li> <Li> Divergence </Li> <Li> Convergence </Li> <Li> Parallel evolution </Li> <Li> Extinction </Li> </Ul>

What does it mean for two species to have a common ancestor