Across
- 3. a system that works with the heart and blood
- 6. makes up all living organisms
- 8. where blood uses it to travel around the body
- 11. group of cells that functions together as one
- 12. a tumor that destroys surrounding cells
Down
- 1. movement of particles from higher to lower concentration area
- 2. a system that helps you breathe
- 4. a structure within a cell
- 5. the red liquid in bodies
- 7. a tumor that does not affect surrounding tissues
- 9. cell has one large vacuole
- 10. carries deoxygenated (blue) blood