NEET 2008
- Exam
- NEET
- Year
- 2008
- Subject
- Zoology
- Chapter
- Organisms and Populations
NEET 2008 · Zoology · Organisms and Populations
Consider the following four statements (a-d) about certain desert...
Consider the following four statements 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?
Options
- Aa and b
- B and
- C and
- Dc and a
Correct answer
B. and
Step-by-step solution
Kangaroo rat is the only mammal which does not ingest any water and reamains only on metabolic water which it can utilize due to nasal counter current mechanism. It feeds on dry castor seeds. Sweat glands are absent and secrete concentrated urine with nitrogenous waste as urea.