NEET 2016 · Class 11

Animal Kingdom

Which of the following characteristic features always holds true for the corresponding group of animals? (a) Possess a mouth with an upper and a lower jaw — Chordata (b) Chambered heart with one incompletely divided ventricle — Reptilia (c) Cartilaginous endoskeleton — Chondrichthyes (d) Viviparous — Mammalia

  1. (A)(a)
  2. (B)(b)
  3. (C)(c)
  4. (D)(d)

The NCERT line that answers it

Verbatim line

They are marine animals with streamlined body and have cartilaginous endoskeleton (Figure 4.19).

Chapter
Animal Kingdom
Section
4.2.11 Phylum – Chordata
Page
10
Words matched
13 of 13

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

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span explicitly states 'have cartilaginous endoskeleton' which is the exact characteristic feature that always holds true for Chondrichthyes, making option (c) correct.

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Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

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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.