• [History of life: Grades 9-12] Present-day species evolved from earlier species; the relatedness of organisms is the result of common ancestry. (LS4.A)
• [Evidence of evolution: Grades 9-12] An organism's features reflect its evolutionary history.
• [Evidence of evolution: Grades 9-12] Features sometimes acquire new functions through natural selection
• [Evidence of evolution: Grades 9-12] Similarities among existing organisms provide evidence for evolution. (LS4.A)
• [Evidence of evolution: Grades 9-12] Developmental similarities of living things often reflect their relatedness. (LS4.A)
• [Mechanisms of evolution: Grades 9-12] Environmental changes may provide opportunities that can influence natural selection. (LS4.B, LS4.C)
• [Nature of science: Grades 9-12] Scientific knowledge is open to question and revision as we come up with new ideas and discover new evidence. (P4, P6, NOS3)
• [Nature of science: Grades 9-12] Scientists test their ideas using multiple lines of evidence. (P6, NOS2)
• [Nature of science: Grades 9-12] Scientists use multiple research methods (experiments, observational research, comparative research, and modeling) to collect data. (P2, P3, P4, NOS1)
• [Nature of science: Grades 9-12] Science is a human endeavor. (NOS7)
• [Studying evolution: Grades 9-12] Scientists use the similarity of DNA nucleotide sequences to infer the relatedness of taxa. (LS4.A)
• [Studying evolution: Grades 9-12] Scientists use fossils (including sequences of fossils showing gradual change over time) to learn about past life.
• [Studying evolution: Grades 9-12] Scientists use developmental evidence to infer the relatedness of taxa. (LS4.A)

• Disciplinary Core Idea LS4.A: Evidence of Common Ancestry and Diversity
• Disciplinary Core Idea LS4.B: Natural Selection
• Disciplinary Core Idea LS4.C: Adaptation
• NOS Matrix understanding category 1. Scientific investigations use a variety of methods.
• NOS Matrix understanding category 2. Scientific knowledge is based on empirical evidence.
• NOS Matrix understanding category 3. Scientific knowledge is open to revision in light of new evidence.
• NOS Matrix understanding category 7. Science is a human endeavor.
• Science and Engineering Practice 4. Analyzing and interpreting data
• Science and Engineering Practice 6. Constructing explanations and designing solutions

This short video would make an easy introduction to a unit on developmental genetics for an AP biology course

• Genetic Variation