Key Idea1 of 3
Energy Flows One Way
Energy enters ecosystems from the sun. Producers capture it, consumers eat producers, and each level gets less energy. That's why the pyramid gets smaller at the top.
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Science — Ecosystems: Food Webs and Energy
Energy enters ecosystems from the sun. Producers capture it, consumers eat producers, and each level gets less energy. That's why the pyramid gets smaller at the top.