Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
11.2 Natural Selection in Populations Populations, not individuals, evolve. 11.2 Natural Selection in Populations A normal distribution graph has a bell-shaped curve. – highest frequency near mean value (middle) • Traits not undergoing natural selection have a normal distribution. 11.2 Natural Selection in Populations Microevolution Evolution within a population that creates new alleles, not new species. 11.2 Natural Selection in Populations Natural Selection Types Directional Selection- favors phenotypes at one extreme. 11.2 Natural Selection in Populations Stabilizing Selection- favors the intermediate phenotype. 11.2 Natural Selection in Populations Disruptive selection- favors both extreme phenotypes. 11.2 Natural Selection in Populations