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Topic Animal classification
Asked 10 times across 5 UPSC exams over 16 years (2009–2025), peaking in 2024.
Key insights
- Most tested in CSE — 3 of 10 PYQs
- Most asked in 2024
- Recurs across 6 years (2009–2025)
How it travelled across exams
First appearance in each exam — the same idea, reframed.
CSE 2009 → CAPF 2019 → CDS 2021 → GEO 2021 → NDA 2024
How the concept evolved
Rising — more than half its appearances (8 of 10) are since 2016.
Sample questions
You've seen the pattern — here are a few of the actual PYQs.
CDS2025
Sponges belong to which one among the following phylum ?
- A Porifera ✓
- B Platyhelminthes
- C Cnidaria
- D Annelida
✓ Correct answer: (A)
Science & Technology › Biology & Health
CSE2024
The organisms "Cicada, Froghopper and Pond skater" are :
- A Birds
- B Fish
- C Insects ✓
- D Reptiles
✓ Correct answer: (C)
Science & Technology › Biology & Health
NDA2024
Organisms of which of the following phylum are called sponges ?
- A Coelenterata
- B Platyhelminthes
- C Porifera ✓
- D Echinodermata
✓ Correct answer: (C)
Science & Technology › Biology & Health
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