| Chapter 16 Stimuli, receptors and responses | | |
| Chapter 16 Stimuli, receptors and responses (2021 new questions) | | |
| Chapter 17 Coordination in humans | | |
| Chapter 17 Coordination in humans (2021 new questions) | | |
| Chapter 18 Movement in humans | | |
| Chapter 18 Movement in humans (2021 new questions) | | |
| Chapter 19 Homeostasis | | |
| Chapter 19 Homeostasis (2021 new questions) | | |
| Integrated Quiz 6 (Book 2B: Chapters 16–19) | | |