Cells and Body Systems Crossword

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Across
  1. 2. system that forms a barrier between our internal and external environments
  2. 4. the "brain" of the cell
  3. 6. engages in photosynthesis to give food to the cell
  4. 7. when all systems are working in harmony
  5. 8. Lenses magnify the object for viewing
  6. 9. system that brings oxygen into our bodies
  7. 12. the powerhouse of the cell
  8. 18. system that controls our hormones
  9. 21. the process in which particles move from high-concentration areas to low-concentration areas
  10. 22. system responsible for creating offspring
  11. 24. Wall protects and forms the structure of plant cells
  12. 25. system that gives our body support and structure
  13. 26. system that expels waste
Down
  1. 1. stores water and nutrients in cells
  2. 2. when systems depend on each other to function
  3. 3. provides nutrients required by the cell to function
  4. 5. system that breaks down food, takes nutrients, and sends waste through our body
  5. 6. Membrane controls what substances come in and out of a cell
  6. 10. permeable membrane lets in some objects/liquids to pass through but not others
  7. 11. Adjustment Knob brings the object into focus
  8. 13. Nosepiece holds the three lenses
  9. 14. system system that controls what we think and feel
  10. 15. can be adjusted to change how much light shines on the object
  11. 16. used to view small objects up close
  12. 17. system that carries blood and oxygen throughout the body
  13. 19. Adjustment Knob moves the stage closer to the lens
  14. 20. system that causes our body to move
  15. 23. when particles pass through a membrane