Across
- 4. absorbs water
- 7. stores urine
- 8. lower chamber of heart
- 9. fights disease
- 11. basic unit of life
- 13. liquid part of blood
- 14. tube that connects the mouth and stomach
- 15. passageway into the lungs
Down
- 1. upper chamber of heart
- 2. transports stuff around the body
- 3. carries oxygen
- 5. connects bronchi and alveoli
- 6. in the lungs
- 10. increase surface area in small intestine
- 12. in kidney, filters blood