Labels:earth | fence | field | grandstand | grass | judo | person | plant | pole | tennis racket | tree | tribute album OCR: HELP Introduction to Respiration Respiration means.breathing Oxygen helps to release the energy from the The air that we breathe food we have 'eaten contains a -gas called Oxygen and digested oxygen. sfood travel into the bloodstream. The oxygen that we where they are take into our lungs passe ed into eventually passes into individual our bloodstream cells lung