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17 Cards in this Set
- Front
- Back
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ecology
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Study of the interactions of organisms with each other and their physical environment
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abiotic component
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Features such as soil water light inorganic nutrients and weather
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biotic component
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Equivalent true community
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community
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Group of interacting populations
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populations
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Consists of all of the individuals I a single species
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habitat
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Place occupied by an organism
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niche
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Role played by the organism...it's interactions
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competitive exclusion principle
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No two species can occupy the same niche
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ecosystems characterized by two processes
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Nutrient cycle and energy flow
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producers
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Autotrophic organisms that harness energy from outside source (sun)
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consumers
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Heterotrophs obtains energy from organisms it other organic material
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herbivores
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Primary consumers, feed directly on plants
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carnivores
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Secondary/tertiary consumers which feed on animals. Some are omnivores which eat both plants and animals
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decomposers
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Organisms tht break down non living inorganic material into inorganic material that can be returned to environment and used again by producers
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food chain
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Illustrates movement of energy from producer to a primary consumer, then to secondary consumers
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tropic level
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Steps in the flow of energy
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food web
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Numerous food chains often overlap because most consumers can eat a variety of organisms
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