Final answer:
The urinary system is responsible for waste elimination, regulating blood volume and body fluid pH, but not for releasing nutrients, which is the role of the digestive system.
Step-by-step explanation:
Functions of the Urinary System
The urinary system plays a critical role in maintaining the body's internal environment. One of its main functions is the elimination of waste products such as urea and uric acid through the formation and excretion of urine. However, other vital roles include regulation of blood volume, regulation of body fluid pH, and removal of body fluid toxic wastes. The urinary system does not release all necessary nutrients, as this function is primarily associated with the digestive system, making option c) the incorrect choice for this question.
Regulation of body fluid pH is achieved through the filtering capabilities of the kidneys which can retain or excrete hydrogen and bicarbonate ions to maintain a stable pH level. The removal of body fluid toxic wastes involves filtering the blood of harmful substances. Lastly, the regulation of blood volume impacts blood pressure and overall fluid balance, which is essential for the body's homeostasis.