AP Bio Units 4, 5, and 6 Lesson Bundles provide all of the content and note takers students need to master the 7 topics in Unit 4 (Cell Communication and Cell Cycle), the 6 topics in Unit 5 (Heredity), and the 8 topics in Unit 6 (Gene Expression and Regulation) from the Updated AP Biology Curriculum. Bundle includes slides for each day/topic, a notetaker for each topic (7 Unit 4 note takers, 6 Unit 5 note takers, and 8 Unit 6 note takers), a unit review for Unit 4, a unit review for Unit 5, and