AP Biology: Unit 7 – Natural Selection

Explore how populations evolve and how evolutionary processes shape the diversity of life with this comprehensive, 21-page study guide covering Unit 7: Natural Selection. Designed to simplify complex evolutionary concepts through clear explanations and organized notes, this resource helps you understand the mechanisms of evolution while preparing for AP Biology coursework and exam questions.

Review the principles of natural selection and artificial selection, and examine how genetic variation and changes in allele frequencies influence populations over time. Develop a deeper understanding of population genetics and Hardy-Weinberg equilibrium, including how to interpret and apply its equations to evaluate whether a population is evolving. You'll also explore the scientific evidence supporting evolution and how multiple lines of evidence help explain the relationships among organisms.

Whether you're preparing for an upcoming unit test, reinforcing challenging concepts, or reviewing for the AP Biology exam, this guide consolidates essential information into one accessible resource to help you connect key ideas, strengthen your understanding, and approach exam questions with greater confidence.