1. Evolution 2. Charles Darwin• developed a scientifictheory of biologicalevolution that explainshow modern organismsevolved over longperiods of time throughdescent from…

Slide 1Population Evolution Biology Chapter 16 1 Slide 2 Genetic Variation Populations always show variation in traits – no two individuals are EXACTLY the same Variations…

Slide 1Biodiversity and Evolution Chapter 4 Slide 2 Core Case Study: Why Should We Care about the American Alligator? Largest reptile in North America 1930s: Hunters and…

Slide 115.3 NOTES Slide 2 Genetic Drift A random change in the frequency of an allele in a population NOT due to natural selection. More likely to occur in small populations.…

Slide 1KEY CONCEPT A population shares a common gene pool. Slide 2 Genetic variation in a population increases the chance that some individuals will survive. Genetic variation…

Slide 1Chapter 15 Evolution Slide 2 Think About It? What is evolution? What is evolution? Why does it happen? Why does it happen? How does it happen? How does it happen?…

Slide 1EVOLUTION OF POPULATIONS Slide 2 YOU MUST KNOW… HOW MUTATION AND SEXUAL REPRODUCTION EACH PRODUCE GENETIC VARIATION THE CONDITIONS FOR HARDY- WEINBERG EQUILIBRIUM…

Slide 1Evolution as Genetic Change Slide 2 16.2 Evolution as Genetic Change Natural selection can affect phenotypes in a population in 3 ways A.Directional Selection B.Stabilizing…

Slide 117.2 Evolution as Genetic Change in Populations Pages 487 - 497 Slide 2 Natural Selection in Action Peppered Moths Slide 3 White moths against a light colored background…

Slide 1 Slide 2 Slide 3 Natural Selection The unequal survival and reproduction of organisms due to environmental forces, resulting in the preservation of favorable adaptations.…