Respiratory system

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Across
  1. 2. This factor affects breathing, larger body
  2. 4. spongy organs protected by rib cage
  3. 5. the energy currency of cell
  4. 6. This activity puts oxygen into the lungs
  5. 7. flattens when you inhale, dome when you exhale
  6. 9. process where gases move by diffusion across surfaces
Down
  1. 1. in yeast glucose forms carbon dioxide atp and __________
  2. 2. anaerobic respiration can be used to make this
  3. 3. Another word for breathing in
  4. 8. this respiration requires oxygen