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Watch Bozeman’s Ecosystems , Biogeochemical Cycles, and Energy Flow in Ecosystems before reading Chapter 55.Concept 55.1: Physical laws govern energy flow and chemical cycling in ecosystems Explain how the laws of thermodynamics and the law of conservation of mass apply to energy flow and chemical cycling within an ecosystem.Label each member of the food chain below with the correct terminology: primary, secondary, tertiary, consumer, producer.Algae Caddisfly larva Bluegill Snapping turtleWhat is a detrivore’s job? Explain why that is so important to life on Earth.Copy Figure 55.4 on page 1220 of your textbook. Include all arrows and labels.Concept 55.2: Energy and other limiting factors control primary production in ecosystemsDescribe the difference between gross primary production (GPP) and net primary production (NPP).Describe how light and nutrients may limit primary production in an aquatic environment.Discuss the impact of eutrophication on a freshwater ecosystem.Describe the abiotic factors that limit primary production in a terrestrial environment.Discuss one adaptation in plants that enables them to overcome limiting nutrients.Concept 55.3: Energy transfer between trophic levels is typically only 10% efficientDescribe what is meant by secondary production. Draw and label Figure 55.10 (p.1225) to help with your description.Describe what happens to the available energy within a food chain as you move up in trophic level. What does this mean for top-level carnivores?Concept 55.4: Biological and geochemical processes cycle nutrients and water in ecosystemsComplete the following table concerning each of the major biogeochemical cycles.CycleBiological ImportanceForms Available to LifeReservoirsKey processesWaterCarbonNitrogenPhosphorusAs shown in the Hubbard Brook experimental forest, what are the impacts of deforestation of a watershed?Chapter 55.4: Restoration ecologists help return degraded ecosystems to a more natural stateContrast bioremediation and biological augmentation. Give an example from the text for each.Describe one restoration project from Figure 55.19 (p.1234-1235). ................
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