Documents Chapter 23 Pathways of Elements in Ecosystems 1 No student presentations today.

Chapter 23 Pathways of Elements in Ecosystems * No student presentations today (c) 2001 by W. H. Freeman and Company Background Cycling of elements and flux of energy in…

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Slide 1 Cellular Respiration Principles of Energy Harvest Ultimately, the NRG in an ecosystem begins as sunlight and leaves as heat Chemical elements are recycled Photosynthesis…