Question 2
ExcretionThe product of excretion common to the mammalian kidney, lung and skin is
- A.mineral salt
- B.carbon(IV) oxide
- C.water
- D.urea
Show the answer and explanation
Answer: C (water)
Explanation
The kidneys remove water in urine, the lungs breathe out water vapour and the skin loses water in sweat. Only water is excreted by all three.