CBSE 2025 · Region 2 · Set 3 · Q21 · 2 marks
State the conclusions derived by David Tilman's long term ecosystem experiments using outdoor plots.
Marking-scheme solution
The plots with more species showed less year to year variation in total biomass , Plots with increased diversity contributed to high productivity
EcosystemEnergy FlowRemembervery_short_answermedium
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CBSE Class 12 Biology past-paper question from the 2025board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.