alleryEnergy movement through trophic levels is:
ACircular flows
BRandom moving
CUnidirectional
DBidirectional
Answer & Solution
Correct answer: C. Unidirectional
1. Energy enters as sunlight and leaves as heat.
2. It never returns to the level it came from.
3. There is unidirectional movement of energy upwards.
4. So the answer is unidirectional.
_Source: syllabus Biology, Ch 12 'Ecosystem'_
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