Respiration in Organisms

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Across
  1. 3. The process of breathing out air
  2. 4. Discovered oxygen
  3. 6. respiratory organ of the frog
  4. 7. baby frogs
  5. 8. The process of breathing in air
  6. 9. dioxide gas we exhale
Down
  1. 1. respiratory organs of the fish
  2. 2. helps you be fit
  3. 5. Human respiratory organ
  4. 6. Helps in exchange of gases in plants