1. An Introduction to Life on Earth

UNIT ONE

The Life of a Cell

2. Atoms, Molecules, and Life

3. Cell Membrane Structure and Function

4. Cell Structure and Function

5. Energy Flow in the Life of a Cell

6. Capturing Solar Energy: Photosynthesis

7. Harvesting Energy: Glycolysis and Cellular Respiration

UNIT TWO

Inheritance

8. The Continuity of Life: How Cells Reproduce

9. Patterns of Inheritance

10. DNA: The Molecule of Heredity

11. Gene Expression and Regulation

12. Biotechnology

UNIT THREE

Evolution

13. Principles of Evolution

14. How Populations Evolve

15. The History of Life on Earth

16. The Diversity of Life

UNIT FOUR

Plant Anatomy and Physiology

17. Plant Form and Function

18. The Plant Life Cycle

UNIT FIVE

Animal Anatomy and Physiology

19. Homeostasis and the Organization of the Animal Body

20. Circulation and Respiration

21. Nutrition, Digestion, and Excretion

22. Defenses against Disease: The Immune Response

23. Chemical Control of the Animal Body: The Endocrine System

24. The Nervous System and the Senses

25. Animal Reproduction and Development

26. Animal Behavior

UNIT SIX

Ecology

27. Population Growth

28. Community Interactions

29. How Do Ecosystems Work?

30. Earth’s Diverse Ecosystems

31. Conserving Life's Biodiversity