Food web direction of arrows trophic levels primary

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Food Web: * direction of arrows Trophic Levels: Primary, Secondary, Tertiary, Quaternary Levels: Pyramid of Numbers: Pyramid of Biomass: Pyramid of Energy Flow: Ten Percent Rule:
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b. Concepts What happens if you remove a lower trophic level organism? What happens if you remove an upper trophic level organism? OVERFISHING – scientific and cultural disadvantages 7. Biogeochemical cycles a. Definitions First principle of Sustainability Second principle of Sustainability Pool Flux Reservoir Time b. Carbon cycle Why do organisms need C? Pools and Processes of the Cycle: Where are fossil fuels in the cycle? What happens when you extract too many fossil fuels in a short amount of time? c. Nitrogen Cycle Why do organisms need N? What are some pools of N? What are the four steps in the N cycle? What role do nitrogen fixing bacteria play? How does excess fertilizer effect the cycle? Lake Eutrophication : definition and process d. Phosphorus cycle Why do organisms need P? What are some pools and processes of the P cycle? What is different about phosphorus compared to carbon and nitrogen? Why is it the slowest of the three cycles? d. Compare how humans impact each cycle
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Food Web direction of arrows Trophic Levels Primary...

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