Which one of the following groups of animals is correctly matched with its characteristic feature without any exception?

(A)Reptilia : possess 3-chambered heart with an incompletely divided ventricle
(B)Chordata : possess a mouth with an upper and a lower jaw
(C)Chondrichthyes : possess cartilaginous endoskeleton
(D)Mammalia : give birth to young ones

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 distinguishing feature that makes option C correct for Chondrichthyes without exception.

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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 2011 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.