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    Unit 1 · Study Notes

    Unit 1: The Living World: Ecosystems

    AP Environmental Science

    Unit Cheat Sheet

    AP Environmental Science · Unit 1: The Living World: Ecosystems · 36 key points · ~9 min review

    🌿 Biotic and Abiotic Factors

    🍃 Trophic Levels and Energy Flow

    🕸️ Food Webs and Ecological Pyramids

    ♻️ Biogeochemical Cycles