Biology

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Across
  1. 3. extreme dryness
  2. 4. the path of diffussion
  3. 7. .
  4. 10. flexing them pecs
Down
  1. 1. windpipe leading from the back of the mouth to the bronchi
  2. 2. .
  3. 5. a trachea filled with water :)
  4. 6. an opening in the trachea (in insects)
  5. 8. the net movement of sunstances down the concentration gradient
  6. 9. what the cell wall in fungi are made up of