BI-1869
Energy flow in ecosystems
Biology · Secondary 4 · Hard · Energy flow in ecosystems
In a simple food chain in a pond, algae are eaten by tadpoles, which are eaten by herons. If the algae store 8000 kJ of chemical energy, and only 10% of energy is transferred from one trophic level to the next, how much energy is available to the herons?
- 80 kJ
- 8 kJ
- 400 kJ
- 800 kJ
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