AP Bio Units 1-8 Lesson Bundles provide all of the content students need to master the 6 topics in Unit 1 (Chemistry of Life), the 11 topics in Unit 2 (Cell Structure and Function), the 7 topics in Unit 3 (Energetics), the 7 topics in Unit 4 (Cell Communication and Cell Cycle), the 6 topics in Unit 5 (Heredity), the 8 topics in Unit 6 (Gene Expression and Regulation), the 13 topics in Unit 7 (Natural Selection), and the 6 topics in Unit 8 (Ecology) from the Updated AP Biology Curriculum. Student