Respiration is the physical act of inspiration and exhalation of oxygen. Gas exchange is what happens in the lungs to use the oxygen that is brought in and expel the Carbon Dioxide brought back into the lungs from the cells. Respiration is the physical act of inspiration and exhalation of oxygen.
Definition of polyphony. : a style of musical composition employing two or more simultaneous but relatively independent melodic lines : counterpoint.
From Wikipedia, the free encyclopedia. Cacophony was an American heavy metal band formed in 1986 by guitarists Marty Friedman and Jason Becker, and signed to Shrapnel Records. They remained active until 1989, after which both guitarists forged their own solo careers and join other bands.