They filter the blood in order to make urine, to release and retain water, to remove waste, and to change the ion concentrations and acid-base balance of the blood.
They also control the ion concentrations and acid-base balance of the blood. They filter the blood in order to make urine, to release and retain water, and to remove waste.
They filter the blood in order to make urine, to release and retain water, and to remove waste. They also control the ion concentrations and acid-base balance of the blood.
They filter the blood in order to make urine, to release and retain water, and to remove waste. They also control the ion concentrations and acid-base balance of the blood.