[Reviews of Energy in the Ecosystem]


Use the diagram to help answer the following questions.

23. If the bottom of this food chain contains 10,000 calories of energy, the amount of energy available to the organisms of the upper most trophic level would be 10 calories.

Hint: According to the 10% law, only 10% of the energy level flows from a lower energy level to the next higher. Since there are 3 trophic levels above the first one, we calculate the following:

10,000----> 1000----> 100----> 10 calories

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