Across
- 3. smooth outer layers
- 5. connects to spine
- 8. system supports and protects
- 9. holds bones to bone
- 11. body regulates itself
- 15. does not connect to spine
- 16. systems organs work together
Down
- 1. heart
- 2. organs
- 4. attached to bone
- 6. tissues work together
- 7. basic unit of life
- 10. can control
- 12. cell work together
- 13. don't control
- 14. hold muscle to bone