BI-1955

Energy losses in food chains

Biology · Secondary 4 · Medium · Energy losses in food chains

In a forest, 10 000 kJ of light energy is fixed by trees. Only 1 000 kJ is transferred to caterpillars that feed on the leaves. Which calculation shows the percentage of energy transferred from trees to caterpillars?

$\dfrac{1000}{10000} \times 100\%$
$\dfrac{10000}{1000} \times 100\%$
$\dfrac{1000}{10000}$
$\dfrac{10000-1000}{10000} \times 100\%$

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