Across
- 2. system transport things
- 6. airway
- 8. system group of organs
- 9. filters waste
- 10. group of tissue
- 13. upper part of heart
- 14. found in kidney
- 15. Exchanges oxygen and carbon dioxide with blood
Down
- 1. Large flat muscles that help with breathing
- 3. group of cells
- 4. stores urine
- 5. tube
- 7. windpipe
- 11. sac of lung tissue
- 12. tree like branches that carry to the air to lungs