Cells

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Across
  1. 3. a small body in a cell's cytoplasm that is specialized to perform a specific function
  2. 4. the region enclosed by the cell
  3. 6. A single-celled organism that does not have a nucleus or organelles
  4. 7. The DNA contained in a membrane-bound organelle
Down
  1. 1. An organism made up of cells that contain their DNA in a nucleus
  2. 2. A protective layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment
  3. 5. Any living thing
  4. 8. The smallest functional and structural unit of all living organisms