NEET UG 2025 · Zoology · Question 139
NEET 2025 Zoology, question 139
Question 139 of the NEET 2025 paper (code 45) is a Zoology question from Animal Kingdom. Its idea, Cyclostomata, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 4.
Updated 2026-10-08
Q139 · Zoology
All living members of the class Cyclostomata are:
- 1Free living
- 2Endoparasite
- 3Symbiotic
- 4EctoparasiteOfficial answer
Official answer: option 4 · NTA final answer key
Same idea
The only question on Cyclostomata
No other NEET paper from 2017–2026 tested this exact idea.
The chapter
Animal Kingdom in ten years of NEET
34 questions from 2017–2026, asked in 10 of 10 papers, about 3.3 a paper. Chordate Classes alone had 16.