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ch 5 vocab

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Question
Answer
Pioneer species   an organism that successfully establishes itself in a barren area, thus starting an ecological cycle of life.  
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Consumers   an organism, usually an animal, that feeds on plants or other animals.  
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Food Web   a series of organisms related by predator-prey and consumer-resource interactions; the entirety of interrelated food chains in an ecological community.  
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Primary Succession   the development of plant and animal life in an area without topsoil; the development of biotic communities in a previously uninhabited and barren habitat with little or no soil  
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Secondary Succession   pertaining to or being a derived or derivative account, an evaluation of original data, etc.; not primary or original  
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Producers   a person who produces and animals who can produce on their own.  
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Nitrogen   fixing bacteria  
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Food chain   a series of organisms interrelated in their feeding habits, the smallest being fed upon by a larger one, which in turn feeds a still larger one, etc.  
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Photosynthesis   the complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chlorophyll.  
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Decomposer   an organism, usually a bacterium or fungus, that breaks down the cells of dead plants and animals into simpler substances.  
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