Methods in science do not include which of the following. 1.) collection of data? 2.) experimentation? 3.) trial and error testing? 4.) or developing a hypothesis?

How do the lungs excrete waste material from the body? the lungs push carbon dioxide from red blood cells out of the body through exhalation. the lungs convert poisonous gas into oxygen that the body can use. the lungs push nitrogen into the digestive system so that it can be removed by the body. the lungs protective cells in the body break down gaseous urea.