Introduction
The human body consists various cells that are actively involved in the maintenance of metabolism. Although, the body organs, cells as well as tissues usually carry out different functions, the body cells are similar in regard to their pertinent metabolic needs (Sherwood, 2015). Thus, maintaining the internal environment at a constant state mainly by proving the oxygen as well as nutrients and elimination of waste in the body is an essential process for the wellbeing of the cells as well as the whole body. As such, the various processes through which the human controls or regulates the internal environment ...