Which of the following is not a function of the kidneys?
Removal of waste products from the blood
Regulation of pH balance in the body
Production of insulin
Release of erythropoietin to control red blood cell production
The kidneys are responsible for removing waste products, regulating pH balance, and releasing erythropoietin to control red blood cell production. However, insulin is a hormone produced by the pancreas, not the kidneys.
Option c is the correctanswer.