Environmental Energy

Energy flows through the ecosystem

• Most of the energy captured on Earth comes from the sun

• Autotrophs use photosynthesis or chemosynthesis to store the energy in organic molecules

• Heterotrophs can't make their food, they have to bring in food from other sources

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Food Chains and Food Webs show how energy moves through communities

• Trophic Levels show how organisms typically get their food

• Energy Pyramids show how much energy is available to each trophic level