NEET Biology
NEETBiologyEcosystem & EcologyClass 12

What does “Ten percent law” actually mean in Ecosystem & Ecology, and why does it matter for NEET?

only about 10% of the energy at one trophic level passes to the next.

In simple words: only about 10% of the energy at one trophic level passes to the next. Getting Ten percent law clear matters because NEET questions on Ecosystem & Ecology usually test this idea directly, not just a formula you memorised.

Key point

Ten percent law

Common mistake

thinking most energy is transferred up the food chain.

Memory tip

because only ~10% moves up, food chains are short and energy pyramids are upright.

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