Across
- 4. what happens when you exhale and a plant inhales
- 7. one of the gases that you exchange
- 9. a tube that connects the nassal phassage to the trachea
- 10. some small tubes that are in your lungs
Down
- 1. a small passage wher the air enters you respiratory system
- 2. a big piece of paper that you can put on walls (mostly used for protests)
- 3. a chatchphrase used in posters or murals
- 5. small sacs sorrounded by capillaries
- 6. a small extension of the Pharynx that connects it to the trachea
- 8. other gas that you exchange