Evolution Blended Unit
In this unit on evolution, students will investigate and communicate information that common ancestry and biological evolution are supported by multiple lines of empirical evidence. Students will also explain that the process of evolution occurs from four factors: (1) the potential for species to increase in number, (2) the heritable genetic variation of individuals due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of organizations that are better able to survive and reproduce in their environment. Students will also apply concepts of probability and statistics to support explanations that organisms with advantageous traits will increase in number compared to organisms lacking these traits. Students will explain how natural selection leads to adaptation of populations. Finally, student will evaluate evidence supporting claims that changes in the environment may lead to: (1) increases in the population of some species, (2) the emergence of new species over time, and (3) the extinction of some species.