JAMB - Biology (2015 - No. 29)
The followings are the functions of the kidneys, except
Regulation of water content in the blood
Maintenance of blood PH and homeostasis
Excretion of CO2
D. Removal of waste products from the blood
Erläuterung
Option C is correct. This is because, excretion of CO2 is done by the lungs through the nostrils.