Across
- 3. uses o2 to break apart glucose
- 9. small part of kidney that filters blood
- 10. space in chest
- 11. tiny air sacs in lung
- 12. substance that provides nourishment for body functions
- 13. liquid waste
Down
- 1. -system organs break down food down into nutrients
- 2. exit tube
- 4. regulates liquid in the blood
- 5. organ that filters blood
- 6. Brings in o2 remounces co2
- 7. tubes that connect the bladder and kidneys
- 8. muscles push food through the digestive system