Class 12 · Ecosystem

Limitations of Ecological Pyramids — NEET Biology

✅ Asked in NEET 2024
✅ NEET 2024 PYQ

(NEET 2024) Which one of the following is not a limitation of ecological pyramids?

QuestionNEET 2024

(NEET 2024) Which one of the following is not a limitation of ecological pyramids?

Answer & NCERT explanation

Correct answer: C It accommodates a food web

Ecological pyramids cannot accommodate food webs - this is actually a major limitation, not a feature they possess. Pyramids show simple linear food chains only. The other options are genuine limitations: saprophytes are excluded, pyramids assume simple chains rather than complex webs, and they don't account for species occupying multiple trophic levels simultaneously.

Read more NCERT concept on the PYQ

📖 NCERT Source

However, there are certain limitations of ecological pyramids such as it does not take into account the same species belonging to two or more trophic levels. It assumes a simple food chain, something that almost never exists in nature; it does not accommodate a food web. Moreover, saprophytes are not given any place in ecological pyramids even though they play a vital role in the ecosystem.

NCERT Biology · Class 12 · Chapter 12 · Paragraph 36
How NTA Uses This Concept

NTA tests whether students understand that ecological pyramids have critical flaws: they cannot represent organisms at multiple trophic levels, ignore food webs, and exclude saprophytes despite their ecosystem importance. Students mistakenly believe pyramids show all energy flow accurately, when they actually oversimplify nature's complex food relationships. Common trap: thinking pyramids perfectly represent real ecosystems. Remember: pyramids assume linear food chains (rare in nature), but actual ecosystems have interconnected food webs. Saprophytes are crucial for nutrient cycling but don't fit pyramid categories. This concept appears because NEET requires understanding both what models show AND their real limitations for ecosystem analysis.

❓ Frequently Asked Questions
What does NCERT say about However there are certain?
However, there are certain limitations of ecological pyramids such as it does not take into account the same species belonging to two or more trophic levels. It assumes a simple food chain, something that almost never exists in nature; it does not accommodate a food web.
Has this concept appeared in NEET?
Yes — appeared in NEET 2024. Lists specific limitations of ecological pyramids including food web issue
Which chapter is this from?
Ecosystem, Class 12 NCERT Biology.

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