Staying alive

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Across
  1. 2. the central and most important part of an object
  2. 3. the process of increasing size
  3. 6. a plastic green cell which contains clorophyll
  4. 9. the process of eliminating or expelling natural waste
  5. 10. an action of breathing
  6. 11. the smallest structural and functional unit of organisms
  7. 14. the material or protasm within a living cell
  8. 17. active against microbes
Down
  1. 1. to eat something healthy
  2. 4. the semipermeable membrane surrounding the cytoplasm of a cell
  3. 5. an optical instrument used for viewing small instruments
  4. 7. cells that make Serbian characteristics
  5. 8. a space or versicle within the cytoplasm of a cell
  6. 12. the quality of condition of being sensitive
  7. 13. an act of moving
  8. 14. wall a rigid layer of polysaccharide lying outside plasma membrane
  9. 15. the action or process of copying something
  10. 16. a microorganisms
  11. 18. an attempt to try define the characteristics unique to living organisms