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Biology LibreTexts

Chapter 2 - Energy Flow and Bioaccumulation

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    • 2.1: Energy
      Virtually every task performed by living organisms requires energy. Nutrients and other molecules are imported into the cell to meet these energy demands. For example, energy is required for the synthesis and breakdown of molecules, as well as the transport of molecules into and out of cells. In addition, processes such as ingesting and breaking down food, exporting wastes and toxins, and movement of the cell all require energy.
    • 2.2: Energy Flow through Ecosystems

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