Across
- 3. digestion
- 8. of the heart
- 10. oxygen and carbon dioxide
- 11. System-Oxygen and carbon dioxide being taken in and out
- 12. in lungs
- 13. urine
- 14. bottom of chest
Down
- 1. System-Waste
- 2. System-Blood
- 4. digestion
- 5. upper part of the heart
- 6. that filters
- 7. filters
- 9. System-Food,energy
- 13. to lungs