There should be more individuals with the dominant trait so the population is not in equilibrium.
IF YOUR ON PLATO THE ANSWER WOULD BE ..............C...........
Its is to remove liquid waste from the blood in the form of urine, and keep a stable balance of salts and other substances in the blood and produce erythropoietin, hormone that is the formation of ref blood cells. The kidney remove ursa from the blood through this filtering units called nephrons
