NEET 2016 · Class 11

Animal Kingdom

Which one of the following characteristics is not shared by birds and mammals?

  1. (A)Viviparity
  2. (B)Warm blooded nature
  3. (C)Ossified endoskeleton
  4. (D)Breathing using lungs

The NCERT line that answers it

Verbatim line

They are oviparous and development is direct.

Chapter
Animal Kingdom
Section
4.2.11 Phylum – Chordata
Page
11
Words matched
7 of 7

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

3333, emb=1.0, combined=0.7333). Verified: high — The span 'They are oviparous and development is direct' conclusively establishes that birds are oviparous (egg-laying), which directly contradicts viviparity (live birth) in option A, making it the characteristic not shared by birds and mammals.

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Question text is reproduced from the published NEET 2016 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.