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Topic Thermoregulation
Asked 3 times across 3 UPSC exams over 44 years (1981–2025), peaking in 1981.
Key insights
- Most tested in CSE — 1 of 3 PYQs
- Most asked in 1981
- Recurs across 3 years (1981–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 1981 → CDS 2019 → CISF 2025
How the concept evolved
Rising — more than half its appearances (2 of 3) are since 2016.
Related concepts
Ideas UPSC tests alongside this one — keep exploring.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CISF2025
Which one among the following animal groups can regulate their body temperatures regardless of their environment ?
- A Reptiles and mammals
- B Mammals and birds ✓
- C Amphibians and reptiles
- D Birds and amphibians
✓ Correct answer: (B)
Science & Technology › Biology & Health
CDS2019
Which one of the following pairs of animals is warm-blooded?
- A Crocodile and Ostrich
- B Hagfish and Dogfish
- C Tortoise and Ostrich
- D Peacock and Camel ✓
✓ Correct answer: (D)
Science & Technology › Biology & Health
CSE1981
How the body temperature is maintained?
- A Due to temperature regulating mechanism located in the base of the brain ✓
- B Due to excessive intake of water
- C Due to regular intake of foods
- D Due to the constant flow of blood in the capillaries
✓ Correct answer: (A)
Science & Technology › Biology & Health
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