Cells.

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Across
  1. 2. one celled organism
  2. 3. organism the obtains energy from eating other organisms
  3. 6. site of protein synthesis
  4. 7. surrounds the nucleas within a cell
  5. 8. one or more celled organism
  6. 9. location of DNA in a prokaryotic cell
Down
  1. 1. organism that makes its own food
  2. 4. surrounds a cell
  3. 5. the entire contents of a living cell
  4. 10. the most basic unit of life