CELLS

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Across
  1. 3. fires electric signals called action potentials
  2. 5. the biochemical processes of respiration and energy production
  3. 6. controls what enters and leaves the cell.
  4. 8. a cell produced through hematopoiesis and found mainly in the blood
  5. 10. cell which has a true nucleus and all the membrane-bound organelles
  6. 11. provides the cell with structural support
Down
  1. 1. a thin,continuous,protective layer of compactly packed cells with a little intercellular matrix
  2. 2. makes protein for the cell
  3. 4. involved in protecting the body against both infectious disease and foreign invaders
  4. 7. aid in intra-cellular digestion, breaking down wastes and old organelles
  5. 9. single-celled organism that lacks a nucleus and other membrane-bound organelles