Question

Which of these blood vessel carry less nitrogenous waste - renal vein or the renal artery?​

Answer 1

Answer:

Renal vein contains less nitrogenous waste as Renal artery brings oxygenated blood to the kidneys from the aorta which arises out of heart, Pulmonary artery and vein also carries blood from heart to lungs and lungs to heart respectively but this blood is not pure and has nitrogenous waste in it while renal vein carries ...