| Chapter 32 Regulation of body temperature | | |
| Chapter 32 Regulation of body temperature (2021 new questions) | | |
| Chapter 33 Regulation of water content | | |
| Chapter 33 Regulation of water content (2021 new questions) | | |
| Chapter 34 Regulation of gas content in blood | | |
| Chapter 34 Regulation of gas content in blood (2021 new questions) | | |
| Chapter 35 Hormonal control of the reproductive cycle | | |
| Chapter 35 Hormonal control of the reproductive cycle (2021 new questions) | | |