Which are true about the following statements about kangaroo rats
(a) They have dark colour, high rate of reproduction and excrete solide urine
(b) They do not drink water, breathe at slow rate, and have their body covered with thick hair
(c) The feed on dry seeds and do not require drinking water
(d) They excrete very concentrated urine and do not use water to regulate body temperature

Options

A. III and I
B. I and II
C. III and II
D. II and III

Answer

C

Explanation

Kangaroo rat feeds on dry seeds. It seldom drinks water. The requirement of water is met by food (10%) and metabolic water (90%). Water loss is prevented by living in burrows during the day, concentration of urine and solidification of faeces. It has a thick coat to minimise evaporative desiccation.