NEET 2018 · Class 11

Biological Classification

Which of the following organisms are known as chief producers in the oceans?

  1. (A)Dinoflagellates
  2. (B)Diatoms
  3. (C)Euglenoids
  4. (D)Cyanobacteria

The NCERT line that answers it

Verbatim line

Diatoms are the chief 'producers' in the oceans.

Chapter
Biological Classification
Section
2.2.1 Chrysophytes
Page
4
Words matched
8 of 8

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 'Diatoms are the chief 'producers' in the oceans,' which directly and conclusively identifies diatoms as the correct answer to the MCQ.

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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 2018 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.