Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Which of the following statements about certain desert animals such as kangaroo rat are true? (1) They have dark colour and high rate of reproduction and excrete solid urine (2) They feed on dry seeds and do not require drinking water (3) They do not drink water, breathe at a slow rate to conserve water and haw their body covered with thick hairs (4) They excrete very concentrated urine and do not use water to regulate body, temperatureA) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: C
Solution :
Kangaroo rat is a desert rodent. Its body is covered by hairs. Its urine is more than 20 times concentrated as its plasma. This concentrated waste enables it to live in dry or desert environment where little water is available for him to drink. Most of its water is metabolically produced from the oxidation of carbohydrates, fats and proteins in the seeds that they eat- The animal remains in cool burrow during day time and the respiratory moisture condensed in nasal passages.
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