Natural selection b. Mutation c. Heredity e. Variation among individuals 23. Disruptive selection e. Convergent evolution 24. Phenotypic plasticity 26. Populations are randomly distributed in space.
Gene flow is random among populations.
Populations that are closer together geographically will have less genetic diversity. Genetic similarity between populations will decrease as the distance between populations increases. Gene flow between populations is unidirectional. A selfing crop with a high mutation rate. A clonal crop with close relatives nearby.