Science

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Across
  1. 2. Robert Hooke was a ...
  2. 5. Thick, rigid, outer boundary of a cell.
  3. 8. There are red blood cells and _____.
  4. 10. Organisms whose cells lack a nucleus and other organelles.
  5. 11. Provides energy for the cell.
  6. 13. The smallest basic unit of life.
  7. 14. Controls all cell activity.
  8. 15. The cell was first discovered on ...
Down
  1. 1. Bacteria was first discovered on ...
  2. 3. An organized nucleus that sometimes has diseases.
  3. 4. Outer cover of an animal cell that controls movement.
  4. 6. The first scientist to use the term cell.
  5. 7. An individual animal, plant, or single celled life form.
  6. 9. An organism consisting of a cell or cells.
  7. 12. Long thread like structure found in nucleus.