biology

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Across
  1. 4. organelle mainly made up of water
  2. 5. the part where two or more bones meet
  3. 6. breathing in
  4. 9. respiration happens here
  5. 10. plant organelle
  6. 11. these contract
  7. 12. single celled organisms
Down
  1. 1. used by some cells to move
  2. 2. we have 206 of these
  3. 3. used to make objects appear larger
  4. 7. bones do this
  5. 8. one cell large
  6. 13. breathing out