Question

Consider the following four statements (1-4) about certain desert animals such as kangaroo-rat.
(i) They have a dark colour and high rate of reproduction and excrete solid urine
(ii) They do not drink water, breathe at a slow rate to conserve water and have their body
covered with thick hairs
(iii) They feed on dry seeds and do not require to drink water
(iv) They excrete very concentrated urine and do not use water to regulate body temperature
Out of these four, which statements are correct?

• A. (iii) and (i)
• B. (i) and (ii)
• C. (iii) and (iv)
• D. (ii) and (iii)

Answer 1

Answer: (D)

(ii) and (iii)

• The kangaroo-rat is adapted to live in hot and dry conditions of the desert.
• They can survive without drinking any water and get the needed moisture from their seed diet.
  
• They conserve water by lowering their metabolic activity which reduces loss of water through their skin and respiratory system.
• The correct answer is '(ii) and (iii)'.