AP Bio Unit 7 (Evolution) Main Menu

Notes from Mr. W:

  • The content below has been updated to align with the College Board’s 2025 AP Biology Course and Exam Description.
  • The College Board’s name for AP Bio Unit 7 is (unfortunately) “Natural Selection.” That was a poor choice, because, as you’ll see below, natural selection is only one aspect of evolutionary change. Hence, we’ve chosen to entitle this unit “Evolution.”

Unit 7 Contents

  1. Topics 7.1 to 7.5 (Natural Selection and Population Genetics)
  2. Topics 7.6 to 7.8 (Evidence for Evolution)
  3. Topic 7.9 (Phylogeny)
  4. Topics 7.10 to 7.11 (Speciation and Extinction)
  5. Topic 7.12 (Origin of Life) 
  6. Unit 7 Cumulative Review

1. Topics 7.1-7.5: Natural Selection and Population Genetics

Natural Selection and Population Genetics Student Learning Guide

    1. Topics 7.1 – 7.3, Part 1: Natural and Artificial Selection

    2. Topics 7.1 – 7.3, Part 2: Sexual Selection

    3. Topics 7.4 -7.5, Part 1: Understanding Allele Frequencies

    4. Topics 7.4 -7.5, Part 2: The Hardy-Weinberg Equation

    5. Topics 7.4 -7.5, Part 3: The Hardy-Weinberg Principle

    6. Topics 7.4 -7.5, Part 4: Natural Selection in Gene Pools 

    7. Topics 7.4 -7.5, Part 5: Mutation, Heterozygote advantage, and Genetic Drift

    8. Topics 7.4 -7.5, Part 6: Natural Selection and Population Genetics Cumulative Flashcards and Quiz (Speed Challenge)

2. Topics 7.6 – 7.8: Evidence for Evolution, Common Ancestry, and Continuing Evolution 

Evidence for Evolution Student Learning Guide

    1. Topics 7.6 – 7.8, Part 1: What Constitutes Evidence for Evolution? Historical Observations

    2. Topics 7.6 – 7.8, Part 2: Homologous and Vestigial structures

    3. Topics 7.6 – 7.8, Part 3: The Fossil Record

    4. Topics 7.6 – 7.8, Part 4: Biogeography, Analogous Traits, and Convergent Evolution

    5. Topics 7.6 – 7.8, Part 5: Embryological, Molecular, and Genetic Evidence

    6. Topics 7.6 – 7.8, Part 6: Evidence for Evolution Cumulative Flashcards and Multiple Choice Quiz

3. Topic 7.9: Phylogeny and Classification

Phylogeny and Classification Student Learning Guide

    1. Topic 7.9, Part 1: Naming and Classifying Species

    2. Topic 7.9, Part 2: Clades and Phylogenetic Trees

    3. Topic 7.9, Part 3: Clades, Taxonomy, and Molecular Clocks

4. Topics 7.10 – 7.11: Speciation and Variation

Speciation, Variation, and Extinction Student Learning Guide

    1. Topic 7.10, Part 1: What is a Species?

    2. Topic 7.10, Part 2: Allopatric speciation

    3. Topic 7.10, Part 3: Sympatric speciation and Adaptive Radiation

    4. Topic 7.11, Variation in Populations (under development)

    5. Topics 7.10-7.11: Speciation and Variation Cumulative  Flashcards and Quiz

Note: Extinction and Mass Extinction was dropped from 2025 CED. You can still access it at the preceding link.

5. Topic 7.12: Origin and Early Evolution of Life

Origin and Early Evolution of Life Student Learning Guide

    1. Topic 7.12, Part 1: Origin of Life Overview

    2. Topic 7.12, Part 2: Abiotic Formation of Monomers and the Miller-Urey Experiment

    3. Topic 7.12, Part 3: Making Polymers, and the RNA World. 

    4. Topic 7.12: Part 4: Where it all happened. Alkaline hydrothermal vents are a promising location for life’s origins.

6. Unit 7  Review Page: Objectives, Flashcards, and Quizzes