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Animals/Plants/Trees/Living Things/Environments!!!

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Term
Definition
organism   a living thing that interacts with living and nonliving parts of its habitat  
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biotic factors   the living parts of a habitat  
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abiotic factors   the nonliving parts of an organisms habitat  
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list the abiotic factors   water, sunlight, oxygen, temperature, soil  
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species   a group of organisms that are physically similar, and can mate with each other & produce offspring that can also mate and reproduce  
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populations   all the members of one species in a particular area  
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communities   all the different populations that live together in an area make up a community  
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habitat   an environment that provides the things the organism needs to live, grow, and reproduce  
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ecosystem   the community of organisms that live in a particular area, along with their nonliving surroundings, make up an ecosystem  
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ecology   the study of how living things interact with each other and their environment  
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limiting factors   An environmental factor that causes a population to decrease, such as amount of food, water, space, climate conditions, humans building homes, etc.  
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competition   the struggle between organisms to survive as the attempt to use the same limited resource  
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carrying capacity   The largest population that an environment can support  
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predation   an interaction in which one organism kills another for food  
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symbiosis   a close relationship between two species that benefits at least one of the species  
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mutualism   a type of symbiosis where both species benefit  
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commensalism   a type of symbiosis where one species benefits and the other is not harmed  
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food chain   a series of events in which one organism eats another and obtains energy  
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food web   the pattern of overlapping food chains in an ecosystemenergy  
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energy pyramid   a diagram that shows the amount of energy that moves from one feeding level to another in a food web  
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