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Essay heading: Trophic categories etc..
 
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Issue: Science
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Date added: October 8, 2006
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No of pages / words: 10 / 2572
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E.g. flowers and pollinating insects. Some organisms cannot live alone: lichens (fungus [protection] and alga [food]) Symbiosis: "living together" (harmful or beneficial; parasitic or mutualistic) Even predator-prey relationships, mutual advantages exist. Killing of individual prey that are weak or diseased may benefit the population as a whole by keeping it healthy...
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Killing of individual prey that are weak or diseased may benefit the population as a whole by keeping it healthy. Predators and parasites may also prevent herbivore populations from becoming so abundant that they overgraze their environment (which might jeopardize the entire ecosystem). --what about humans? Hitler...
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Trophic categories etc..
E.g. flowers and pollinating insects. Some organisms cannot live alone: lichens (fungus [protection] and alga [food]) Symbiosis: "living together" (harmful or beneficial; parasitic or mutualistic) Even predator-prey relationships, mutual advantages exist...
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These organisms depend on the primary producers, for food and shelter. Secondary consumers- these organisms eat the primary consumers, for example, the frogs eat the insects, and the weasels eat the mice...
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