BI-1915
Energy flow in ecosystems
Biology · Secondary 4 · Hard · Energy flow in ecosystems
In a food chain, grass → grasshopper → frog → snake, only about 10% of the energy is passed from one trophic level to the next. If the grass stores 5000 kJ of energy, how much energy is available to the frogs?
- 50 kJ
- 500 kJ
- 1000 kJ
- 2500 kJ
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