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Biology Question 140 – NEET-UG 2024

In an ecosystem if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m−2) yr−1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
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Ninja Strategy•Trophic Level Hop

Simply apply the 10% rule twice: starting from 100x at T1, the energy becomes 10x at T2, and then x at T3.