Chapter 1: Introduction: Biology Today Unit 1: Cells Chapter 2: Essential Chemistry for Biology Chapter 3: The Molecules of Life Chapter 4: A Tour of the Cell Chapter 5: The Working Cell Chapter 6: Cellular Respiration: Obtaining Energy from Food Chapter 7: Photosynthesis: Using Light to Make Food Unit 2: Genetics Chapter 8: Cellular Reproduction: Cells from Cells Chapter 9: Patterns of Inheritance Chapter 10: The Structure and Function of DNA Chapter 11: How Genes Are Controlled Chapter 12: DNA Technology Unit 3: Evolution and Diversity Chapter 13: How Populations Evolve Chapter 14: How Biological Diversity Evolves Chapter 15: The Evolution of Microbial Life Chapter 16: The Evolution of Plants and Fungi Chapter 17: The Evolution of Animals Unit 4: Ecology Chapter 18: An Introduction to Ecology and the Biosphere Chapter 19: Population Ecology Chapter 20: Communities and Ecosystems