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BiologyOur Environment
10% Energy Flow Law
Follow energy through trophic levels in a food chain.
Controls
10000 J
3
Live result
Level
Small carnivores
Energy available
100J
Energy lost as heat
9900J
Energy100
Energy flow — 10% lawLevel: Small carnivores
Only about 10% of energy moves to the next level, so food chains rarely exceed 4–5 levels.