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.
Polygamy (from Late Greek ÏÎ¿Î»ÏÎ³Î±Î¼Î¯Î±, polygamÃ­a, state of marriage to many spouses)[1][2][3][4] is the practice of marrying multiple spouses. When a man is married to more than one wife at a time, it is called polygyny. When a woman is married to more than one husband at a time, it is called polyandry.