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...Chapter energetics of an aquatic ecosystem william h leonard school life sciences university nebraska lincoln ne received his undergraduate and master s degrees in biology from san jose state re spectively ph d education the california at berkeley he has taught city college chemistry physiology general science for years piedmont hills high where was department chair associate research educator lawrence hall u c to became assistant professor instructional coordinator now is that director its intro ductory program activity teach ing strategies publishes regularly journal teaching american teacher other sci ence journals written directed several video programs published laboratory text books introductory both sec ondary levels introduction this a which develops fundamental concepts energy flow through vestigation can be carried out classroom using stocked aquaria or almost any natural pond marsh although it designed course could also used ecology by collecting more extensive data further ...