Consider the following four statements (i-iv)
about certain desert animals such as kangaroo,
rat
(i) They have 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
drinking water
(iv) 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) (iii) and (iv) (b) (ii) and (iii)
(c) (iii) and (i) (d) (i) and (ii)
Answers
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)'.
Answer:
Consider the following four statements (i-iv)
about certain desert animals such as kangaroo,
rat
(i) They have 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
drinking water
(iv) 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) (iii) and (iv)
(b) (ii) and (iii)✔
(c) (iii) and (i)
(d) (i) and (ii)