NEET 2011 · Class 12
Ecosystem
Which one of the following statements for the pyramid of energy is incorrect?
- (A)Its base is broad.
- (B)It shows energy content of different trophic level organisms.
- (C)It is inverted in shape.
- (D)It is upright in shape.
The NCERT line that answers it
Verbatim linePyramid of energy is always upright, can never be inverted, because when energy flows from a particular trophic level to the next trophic level, some energy is always lost as heat at each step.
- Chapter
- Ecosystem
- Section
- 12.5 ECOLOGICAL PYRAMIDS
- Page
- 8
- Words matched
- 34 of 34
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 'Pyramid of energy is always upright, can never be inverted', which directly proves option C is incorrect.
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.
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.