The source of energy in an ecosystem is:
Correct answer: C. Light received from the sun
- A. sugar stored in plants
- B. Heat liberated during fermentation
- C. Light received from the sun
- D. Heat liberated during respiration
Explanation
Sunlight is the primary external energy source for most ecosystems, entering through photosynthesis by plants and other producers. Energy stored in plant sugar is already captured solar energy, not the original source.
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