AP Biology Unit 7: Natural Selection

Unit 7: Natural Selection — Comprehensive Study Guide Dobzhansky's line — "nothing in biology makes sense except in the light of evolution" — is the mission statement for Unit 7. Every structural feature, physiological adaptation, and genetic pattern studied in prior units is explained here as the product of a few population-level processes acting over deep time. Expect ~13–20% of MCQs from this unit and at least one Hardy-Weinberg calculation on the exam. 💡 Exam Tip: When you see the words "evolved to," rewrite them in your head as "was favored by selection because heritable variation produc…