substances

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Across
  1. 2. basic unit of life
  2. 4. a type of connective tissue
  3. 6. structural and functional unit of nerve
  4. 7. energy giving foods
  5. 8. should be expelled out of the cell
  6. 10. oxygen carrying substance in the blood
Down
  1. 1. needed for the cell
  2. 3. power house of the cell
  3. 5. body building foods
  4. 9. a fluid connecting tissue