in the process of respiration there is an exchange of 1.___and2.____.In your body, oxygen is continuously supplied to your 3._____and is transported through your bloodstream.Oxygen is then use oxidize or burn food materials every 4.___.After the cellular breakdown of5.____,6.____ is released by your cell. this gase our waste is again 7.___by your8.____and is expelled from your body system.​