Cells

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Across
  1. 2. is the brain of a cell
  2. 6. make up everything
  3. 7. is in plants to help photosynthesis
  4. 10. these cells are in human beings
Down
  1. 1. cells are what size
  2. 3. plant cells are generally what shape
  3. 4. substance that surrounds organelles
  4. 5. plant cells have these but animal cells do not
  5. 8. these cells are in trees
  6. 9. cells are in all what things