The functions of human kidneys do not include:
1. Secretion of renin to regulate GFR and blood pressure.
2. Activating vitamin D.
3. Site of maximum gluconeogenesis in the body.
4. Production of erythropoietin that stimulates bone marrow.
Acid-base balance in the human body is regulated by:
1. heart and lungs | 2. liver and hypothalamus |
3. kidneys and lungs | 4. lungs and heart |