NEET 2022 Re · Class 11

Animal Kingdom

Which of the following animals has three chambered heart?

  1. (A)Pteropus
  2. (B)Scoliodon
  3. (C)Hippocampus
  4. (D)Chelone

The NCERT line that answers it

Verbatim line

Heart is usually three-chambered, but four-chambered in crocodiles.

Chapter
Animal Kingdom
Section
4.2.11 Phylum – Chordata
Page
12
Words matched
34 of 34

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

How this line gives the answer

3333, emb=0.7908, combined=0.6078). Verified: high — The span explicitly states 'Heart is usually three-chambered' and includes 'Chelone (Turtle)' as an example of reptiles, directly linking the three-chambered heart fact to the correct answer.

We did this for 1,565 questions.

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.

Take the free 5-minute checkMore from this chapter

Question text is reproduced from the published NEET 2022 Re 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.