Across
- 2. organs work together
- 5. a system that supports and protects
- 7. cells work together
- 9. tissue work together
- 10. holds bones to bones
Down
- 1. body regulates itself
- 3. the bones smooth outer layer
- 4. muscle attached to bone
- 6. the part of the skeleton that is connected to the spine
- 8. the basic unit of life