Across
- 2. Power house of the cell
- 4. a unicellular organism
- 7. A tool that helps scientist study cells
- 9. The second level of organization
- 10. A organism made of one cell
Down
- 1. Has no nucleus
- 3. The basic unit of life
- 5. Developed the cell theory
- 6. The center of the cell
- 8. Has a large vacuole