The kidneys in human beings are a part of the system for
(a) nutrition.
(b) respiration.
(c) excretion.
(d) transportation.
(c) In human beings, the kidneys are a part of the system for excretion.
Question 1 The kidneys in human beings are a part of the system for (a) Nutrition (b) Respiration (c) Excretion (d) Transportation