Exercise B Directions: Fill in the blanks with the missing words to complete the paragraph. In the process of respiration, there is an cxchange of (1) and (2) In your body, oxygen is continuously supplied to your (3) and is transported through your bloodstream. Oxygen is then used to oxidize or "burn” food materials in every (4) _ After the cellular breakdown of (5) „ is released by your ccll. This gascous waste is again (7) by your (8) and is expeiied from your body system. The breathing rate of individual varies according to (9) or activities. Infants breathe 30 to 40 times a minute while at your age, until you are about 25, the rate is further slowed down, about (10) times a minute. (6).