Brief Contents

1 An Introduction to Life on Earth 

Unit 1 The Life of the Cell 
2 Atoms, Molecules, and Life 
3 Biological Molecules 
4 Cell Structure and Function 
5 Cell Membrane Structure and Function
6 Energy Flow in the Life of a Cell 
7 Capturing Solar Energy: Photosynthesis 
8 Harvesting Energy: Glycolysis and Cellular
Respiration 

Unit 2 Inheritance 
9 Cellular Reproduction 
10 Meiosis: The Basis of Sexual Reproduction 
11 Patterns of Inheritance 
12 DNA: The Molecule of Heredity 
13 Gene Expression and Regulation 
14 Biotechnology 

Unit 3 Evolution and Diversity of Life 
15 Principles of Evolution 
16 How Populations Evolve 
17 The Origin of Species 
18 The History of Life 
19 Systematics: Seeking Order Amid Diversity 
20 The Diversity of Prokaryotes and Viruses 
21 The Diversity of Protists 
22 The Diversity of Plants 
23 The Diversity of Fungi 
24 Animal Diversity I: Invertebrates 
25 Animal Diversity II: Vertebrates 

Unit 4 Behavior and Ecology 
26 Animal Behavior 
27 Population Growth and Regulation 
28 Community Interactions 
29 Energy Flow and Nutrient Cycling in Ecosystems 
30 Earth’s Diverse Ecosystems 
31 Conserving Earth’s Biodiversity 

Unit 5 Animal Anatomy and Physiology 
32 Homeostasis and the Organization of the Animal
Body 
33 Circulation 
34 Respiration 
35 Nutrition and Digestion 
36 The Urinary System 
37 Defenses Against Disease 
38 Chemical Control of the Animal Body: The
Endocrine System 
39 The Nervous System 
40 The Senses 
41 Action and Support: The Muscles and Skeleton 
42 Animal Reproduction 
43 Animal Development 

Unit 6 Plant Anatomy and Physiology 
44 Plant Anatomy and Nutrient Transport 
45 Plant Reproduction and Development 
46 Plant Responses to the Environment