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Bio112 April 29th

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Subject: 
Biology
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Tags: 
Biology
Ecology
Soil biology
Biogeochemical cycle
Biogeography
Fisheries
Food web
Energy flow
Primary production
Trophic level
Carbon Cycle
Nitrogen cycle
Environment
Bio 112

Bio 112 April 29th, 2013 More on Ecosystems Food webs -Is a branching food chain with complex trophic interactions -Including decomposes (detritevors) Energy Flow through Ecosystems -from one trophic level to the next. Primary production - are photoautotrophs, capturing energy from the sun. Energy flows from these guys through all other levels. Of course some energy will be lost at each level. -light energy converted to chemical energy by autorophs during a given time period. -Gross primary production is the total primary production. -Net primary production is GPP minus energy used by producers (respiration)-only this is available to consumers. NPP is more important then GPP. Secondary production

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