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Question
Complete the following table.
| Organ system | Organs | Functions |
| 1. Respiratory | ||
| 2. Circulatory system |
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Solution
| Organ system | Organs | Functions |
| 1. Respiratory | Nose | Traps dust particles and germs, preventing their access to the respiratory system. |
| Pharynx | It serves as a route for air entering the windpipe. | |
| Wind pipe | It serves as a channel for air to enter the lungs. | |
| Lungs | The lungs are to exchange oxygen and carbon dioxide between the blood and the air. | |
| 2. Circulatory system | Heart | The major organ via which blood circulates to various body parts. |
| Blood vessels | A closed network of vessels that aids in blood circulation. |
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