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.
Definition of Cacophony. Cacophony is a mixture of harsh and discordant noises. As a literary device, cacophony refers to the usage of several unharmonious or dissonant sounds in a line or passage.