| 1 | Defines the functions of the cell. |
| 2 | Explains the working mechanisms and functions of the musculoskeletal system. |
| 3 | Explains the working mechanisms and functions of the respiratory system. |
| 4 | Explains the working mechanisms and functions of the circulatory system. |
| 5 | Explains the working mechanisms and functions of the digestive system. |
| 6 | Explains the working mechanisms and functions of the urogenital system. |
| 7 | Explains the working mechanisms and functions of the endocrine system. |
| 8 | Explains the working mechanisms and functions of the nervous system and sensory organs. |