Chapter 1. Scientific investigation -- Unit 1: How do organisms regulate their functions? -- Area of study 1. How do cells function? -- Chapter 2. Cellular structure and function -- Chapter 3. The cell cycle and cell growth, death and differentiation -- Area of study 2. How do plant and animal systems function? -- Chapter 4. Functioning systems -- Chapter 5. Regulation of systems -- Unit 2: How does inheritance impact on diversity? -- Areas of study 1. How is inheritance explained? -- Chapter 6. The nature of genes -- Chapter 7. Patterns of inheritance -- Area of study 2. How do inherited adaptations impact on diversity? -- Chapter 8. Reproductive strategies -- Chapter 9. Adaptations and diversity – Glossary -- Index