CBSE 2024 · Region 4 · Set 1 · Q16 · 1 mark
Assertion (A) : Some aquatic ecosystems have inverted biomass pyramids.
Reason (R) : More energy is required by the organisms occupying higher trophic levels.
Official answer
From CBSE’s own marking scheme for this paper.
(B)
Both (A) and (R) are true and (R) is not the correct explanation of (A).
EcosystemEcological PyramidsAnalyseassertion_reasonmedium
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CBSE Class 12 Biology past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.