Which of the following animal can survive without drinking water?
Correct answer: A. Kangaroo rat
- A. Kangaroo rat
- B. Pig
- C. Camel
- D. Kangaroo
Explanation
Kangaroo rats, because their habitats are hot and dry, must conserve water. They do this in part by lowering their metabolic rate, which reduces the loss of water through their skin and respiratory system. Evaporation through the skin is the major route of loss. Merriam's kangaroo rats obtain enough water from the metabolic oxidation of the seeds they eat to survive and do not need to drink water at all.
This question appeared on the HEC Phase I 2017 paper, which you can sit online with every answer explained.
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