cells.....

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Across
  1. 6. cells present in blue-green algae.
  2. 7. organisms of only a single cell.
  3. 8. the basic cellular structural unit.
Down
  1. 1. cells which fight diseases.
  2. 2. powerhouse of the cell.
  3. 3. organisms of many cells.
  4. 4. cells present in plants and animals.
  5. 5. brain of the cell.