O-LevelBiologyEcology & Environment5090/12 · May/June 2021 · Q281 Mark
What is the reason for describing the flow of energy through an ecosystem as non-cyclic?
AThe energy cannot be returned to its original source.
BThe energy cannot have its form changed within an organism.
CThe energy can only be passed on in its original form.
DThe energy can only be transferred to a larger organism.
✓ Correct answer
A: The energy cannot be returned to its original source.
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