Across
- 5. Where food passes through
- 7. Main passageway into lungs
- 8. flow into an organism
- 9. Hair like structures
- 10. primary organs
Down
- 1. Bones that protect internal organs
- 2. amount of air you can breath in
- 3. Act of breathing
- 4. What you breathe out
- 5. flow out of an organism
- 6. Where the air comes in and out of the body