Each ____ in your body has parts working together ____ carries oxygen throughout your body. Andy's ____ fill up with air quickly when he runs. Peter could feel his ____ in his wrist. Your ____ lets air into your lungs. A sneeze or cough can ____ another person. Some ____ make people very sick. Thomas was in bed for two days with ____ Maria can't get the flu because she is ____ to it. Beth uses a ____ to see plants cells.

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