What are the 3 types of respiratory systems?

Related questions

1. Can you strengthen your lungs?
2. Is dying from COPD a painful death?
3. What causes respiratory disorders?
4. Does sleep apnea cause dyspnea?
5. Why do I feel like I can't get a good breath?
6. What are 3 respiratory disorders?
7. Is paroxysmal nocturnal dyspnea dangerous?
8. When should you go to the doctor for shortness of breath?
9. What are the 3 phases of respiration?
10. How does dyspnea affect the body?

Tags

1. #structures
2. #major
3. #exchange
4. #gills
5. #respiratory
6. #there
7. #areas
8. #three
9. #vertebrates
10. #types
11. #lungs
12. #integumentary