Across
- 5. the cell's environment
- 7. pack and carry proteins
- 8. a group of cells working together
- 9. produce energy for the cell
- 10. a group of tissues working together
- 11. a place for cell reactions
Down
- 1. Recycle worn-out products
- 2. multiple organs systems
- 3. regulates cell activity
- 4. a group of organs working together
- 5. the outer structure
- 6. make proteins for the cell