An exchange occurs in which blood cells receive oxygen and release carbon dioxide, a waste product that is carried back to your heart and lungs and exhaled.
(An exchange; occurs; ) (blood cells; receive; oxygen and release carbon dioxide) (a waste product; is carried; back to your heart and lungs) (a waste product; exhaled; )
An exchange blood cells a waste product a waste product
occurs receive is carried exhaled
oxygen and release carbon dioxide
back to your heart and lungs