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Science Vocab 1

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Question
Answer
a species that colonizes an uninhabited area and that starts an ecological cycle in which many other species become established   Pioneer Species  
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an organism that eats other organisms or organic matter instead of producing its own nutrients or obtaining nutrients form inorganic sources   Consumers  
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an organism that feeds by breaking down organic matter from dead organisms   Decomposer  
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a diagram that shows the feeding relationships between organisms in an ecosystem   Food web  
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succession that begins in an area that previously didn't support life   Primary Succession  
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the process by which one community replaces another community that has been partially or totally destroyed   Secondary Succession  
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an organism that can make organic molecules from inorganic molecules   Producers  
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bacteria that convert atmospheric nitrogen into ammonia   Nitrogen fixing bacteria  
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the pathway of energy transfer through various stages as a result of feeding patterns of series of organisms   Food Chain  
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the process by which plants, algae, and some bacteria use sunlight, carbon dioxide, and water to produce carbohydrates and oxygen   Photosynthesis  
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Created by: Sarah-Ellen
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