Across
- 3. what the body needs but doesn't make
- 4. small part of kidney that filters blood
- 9. body system brings in 02, removes C2
- 11. liquid waste
- 12. uses 02 to break apart glucose
- 14. the change of food into new substances
- 15. tubes that connect the bladder and kidneys
- 16. stores the bile
Down
- 1. organ that filters blood
- 2. organs that break food down into nutrients
- 5. exit tube
- 6. cleans toxins from the blood, makes bile
- 7. regulates liquid in the blood
- 8. cavity space in chest
- 10. tiny air sacs in lungs
- 13. muscles push food through the digestive system