Across
- 4. tissues work together forms
- 5. smallest unit of life
- 7. group of cells
- 9. To breathe
- 10. Send and receive signals
Down
- 1. air we inhale
- 2. pumps blood
- 3. From mouth food passes through
- 6. organ in which air goes from wind pipe
- 8. present in mouth to make food soft