Staying alive

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