Across
- 2. system that removes liquid waste
- 5. smallest unit of living matter
- 6. system made up of bones
- 7. main organ of the excretory system
- 12. tissues working together
- 14. system that brings oxygen to the body
- 15. main organ of the nervous system
- 16. organ that filters waste from blood
Down
- 1. main organ of the circulatory system
- 3. allows the body to move
- 4. cells working together
- 5. system that moves blood around the body
- 8. system that breaks down food
- 9. main organ of the human respiratory system
- 10. living thing that carries out the 5 basic life functions
- 11. system that is the master controller of the body
- 13. mechanism that grinds food for a bird.