Q. Consider the following four statements (a - d) about certain desert animals such as kangaroo rat. (a) They have dark colour and high rate of reproduction and excrete solid urine (b) They do not drink water, breathe at a slow rate to conserve water and have their body covered with thick hairs (c) They 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 Which two of the above statements for such animals are true?
A) a and b
B) c and d
C) b and c
D) c and a
Explanation
[Solution from source] The kangaroo rat lives on dry seeds and meets its water needs from metabolic water produced by oxidising its food. It produces highly concentrated urine and does not sweat to cool itself. Dark colour, solid urine and a thick hair coat are not its adaptations. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.