Across
- 2. An organ that exchanges oxygen and carbon dioxide with the blood
- 5. upper chamber of the heart
- 7. Basic Unit of life
- 8. A group of similar cells that perform the same function
- 9. large muscular sac for diegestion
- 11. A muscular tube that connects the mouth to the stomach
- 12. lower chamber of the heart
- 13. carries blood away from the heart
Down
- 1. liquid part of blood
- 3. Found in the kidney, little filter that blood goes through
- 4. Helps form scabs
- 6. where diegestion begins
- 10. smallest blood vessel
- 12. Carries blood to the heart