1. Humans in the World of Biology

1a. Special Topic: Becoming a Patient: A Major Decision

2. Chemistry Comes to Life

3. The Cell

4. Body Organization and Homeostasis

5. The Skeletal System

6. The Muscular System

7. Neurons: The Matter of the Mind

8. The Nervous System

8a. Special Topic: Drugs and the Mind

9. Sensory Systems

10. The Endocrine System

10a. Special Topic: Diabetes Mellitus

11. Blood

12. The Cardiovascular and Lymphatic System

12a. Special Topic: Cardiovascular Disease

13. Body Defense Mechanisms

13a. Special Topic: Infectious Disease

14. The Respiratory System

15. The Digestive System and Nutrition

15a. Special Topic: The Obesity Epidemic

16. The Urinary System

17. Reproductive Systems

17a. Special Topic: Sexually Transmitted Diseases and AIDS

18. Development Through Life

18a. Special Topic: Autism Spectrum Disorder

19. Chromosomes and Cell Division

19a. Special Topic: Stem Cells—A Repair Kit for the Body

20. Genetics and Human Inheritance

21. DNA and Biotechnology

21a. Special Topic: Cancer

22. Evolution and Our Heritage

23. Ecology, The Environment, and Us

24. Human Populations, Limited Resources, and Pollution