Chapter 22: Decent with Modification

Chapter 23: The Evolution of Populations

Chapter 24: The Origin of Species

Chapter 25: The History of Life on Earth

Chapter 26: Phylogeny and the Tree of Life

Chapter 27: Bacteria and Archaea

Chapter 28: The Protists

Chapter 29: Plant Diversity Part I

Chapter 30: Plant Diversity Part II

Chapter 31: The Fungi

Chapter 32: Overview of Animal Diversity

Chapter 33: Invertebrates

Chapter 34: Vertebrates

Chapter 51: Animal Behavior

Chapter 52: Introduction to Ecology and Biospheres

Chapter 54 & 55: Community Ecology and Ecosystems