Question : Which of the following series is true about energy flow in an ecosystem?
Option 1: Producers→ Decomposers→ Consumers
Option 2: Decomposers→ Consumers → Producers
Option 3: Producers→ Consumers→ Decomposers
Option 4: Consumers→ Producers→ Decomposers
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Correct Answer: Producers→ Consumers→ Decomposers
Solution : The correct answer is Producers→ Consumers→ Decomposers .
Energy flows in an ecosystem from one trophic level to another trophic level. Producers are the autotrophs that are the solar energy producers in an ecosystem. They are green plants, blue-green algae and phytoplanktons that can generate food with the help of photosynthesis. Consumers depend on producers for their energy needs and consume them like deer, horses, caterpillars, zooplanktons and other animals. Finally, after their death, they are disintegrated by Decomposers like bacteria and fungi.
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