Animal Kingdom NEET PYQs (1988–2026)

Solved Animal Kingdom PYQs

3 recent questions with answers. The full set of 227 is free to practise.

1. NEET 2026MediumClasses of vertebrates (Pisces–Amphibia)
   Q1

   A group of researchers procured some fish like animals and upon investigation the following characters were observed:
   
   A. Endoskeleton was made of cartilage.
   
   B. Ectoparasitic; as they were found attached on fish skin with their circular sucking mouth.
   
   C. Paired fins and scales were absent, but 7 pairs of gill slits were present.
   
   Which of the following species of animals did they consider to fit best with these characters?

   • AScoliodon sp.
   • BPetromyzon sp.
   • CExocoetus sp.
   • DBranchiostoma sp.

   Show answer & solution

   Correct answer: (B)

   Petromyzon (lamprey) has cartilaginous skeleton, sucking mouth, ectoparasitic, no paired fins/scales, 7 pairs of gill slits.
2. NEET 2026MediumBasis of animal classification
   Q2

   Select the incorrect statements from the following:
   
   A. Digestive system in Platyhelminthes is incomplete.
   
   B. Bilateral symmetry is a characteristic feature of adult Echinoderms.
   
   C. Pseudocoelom is possessed by Aschelminthes.
   
   D. Notochord is persistent throughout life in the class Chondrichthyes.
   
   E. Members of class Reptilia maintain a constant body temperature.
   
   Choose the answer from the options given below:

   • AA and C only
   • BB and E only
   • CC and D only
   • DB and D only

   Show answer & solution

   Correct answer: (B)

   B is incorrect (adult echinoderms are radial). E is incorrect (reptiles are poikilothermic). So B and E.
3. NEET 2026EasyClasses of vertebrates (all)
   Q3

   The flightless bird with forelimbs modified as paddle-like
   
   structures suited for swimming is known as:

   • AStruthio
   • BNeophron
   • CAptenodytes
   • DPsittacula

   Show answer & solution

   Correct answer: (C)

   Aptenodytes is penguin -- flightless with flippers.

Topic-wise question count

Where NEET has asked from Animal Kingdom, most frequent first.

• Salient features of non-chordates88
• Classes of vertebrates (Reptilia to Mammalia)45
• Basis of animal classification33
• Classes of vertebrates (Pisces to Amphibia)27
• Key distinguishing features and examples17
• Salient features of chordates12
• Classes of vertebrates (Pisces–Amphibia)2
• Classes of vertebrates (all)2
• Classes of vertebrates (Reptilia–Mammalia)1

Year-wise Animal Kingdom questions in NEET

Number of questions from this chapter in each year's paper(s).