III. Ecosystem Def. - the combination of biotic and abiotic components through which energy flows and materials cycle (usually a self-contained unit,
III. Ecosystem Def. - the combination of biotic and abiotic components through which energy flows and materials cycle (usually a self-contained unit, such.
SC 300 Unit 4
Chapter 47 Ecosystems: A Summary AP Biology Spring 2011.
Energy Flow Through Trophic Levels Biology 12(C).
Food chains/webs and trophic levels
