Survey the Landscape Chapter 12 Review the chapter 12 Survey the Landscape concept map below, and then answer the following questions Evolution has occurred throughout Life's history occurs by is deduced by studying require Natural selection and other mechanisms Genetic variatiorn Fossils, DNA, and other evidence exists among members of each from the present and past have left may lead to provide information to build Reproductive define Species barriers includes formation and extinction of can be arranged into Phylogenetic trees Survey the Landscape- Mutations and populations Consider how you might add mutations, alleles, and population to the concept map. Each statement contains one term already present in the concept map (italicized) and one new term (bold). The intervening words represent the connecting phrase in the concept map. Select all of the accurate statements. Mutations generate genetic variation Mutations are a mechanism of evolution Species is a group of organisms that have the same alleles Genetic variation exists in every real population Natural selection and other mechanisms lead to changes in the frequencies of alleles Population is a group of organisms that does not undergo evolution.