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Question
Which comparison between energy flow and nutrient cycling is correct?
Options
Energy flow is unidirectional (one-way), whereas nutrient cycling is cyclic (repeats).
Both energy flow and nutrient cycling are unidirectional (one-way).
Both energy flow and nutrient cycling are cyclic (repeats).
Energy flow is cyclic (repeats), whereas nutrient cycling is unidirectional (one-way).
MCQ
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Solution
Energy moves in one direction through an ecosystem and is eventually lost as heat. Nutrients are reused and therefore move in cycles.
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