Types of Natural Selection

Natural selection—good things come to those who mate. The video introduces the idea of natural selection. Then it details three types: directional, stabilizing, and disruptive. It includes both graphs and examples for each type.

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CCSS: Adaptable
Instructional Ideas

  • Compare the three types of natural selection
  • Discuss how this relates to the Hardy-Weinberg principle
Classroom Considerations

  • Relies on basic knowledge of genetics and how to interpret graphs

  • Requires very little class time
  • Highlights vocabulary words

  • None