Ecosystems - Community Ecology Objectives 5.1.9 State that...

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Community Ecology
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Objectives 5.1.9 – State that light is the initial energy source for almost all communities. 5.1.3 – Distinguish between producers, consumers, detritivores, and saprotrophs. 5.1.4 – Describe what is meant by a food chain, giving three examples, each with at least three linkages (four organisms). 5.1.5 – Describe what is meant by a food web. 5.1.8 - Construct a food web containing up to 10 organisms, using appropriate information.
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Communities Community : a group of populations living and inter-acting with each other in the same area Everglades community Coral Reef community N g
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Community relationships Ecosystems are energy machines and matter processors. Sunlight provides the energy that powers almost all life on Earth. A few communities (ex: in geothermal ecosystems) are powered by heat or chemicals.
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Food chains Producers capture the sun’s energy and con- vert it to chemical energy in the form of complex organic mol- ecules such as lipids, carbohydrates, and proteins. Consumers must get their energy by eating it.
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Food chains Consumers are named ac- cording to what they eat. Herbivores (plant-eaters) eat the producers; primary consumers. Carnivores (meat-eaters) eat the herbivores or other carnivores; secondary consumers.
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