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| the part of the earth that supports organisms |
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| consists of communities and the abiotic factors that affect them |
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| a single individual from a population |
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| made up of populations of differenet species that interact in some way |
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| any organisms that were living or were once living |
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| the study of interactions that take place among organisms and between organisms and the physical features of the environment |
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| a scientist who studies ecology |
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| all the individuals of one species that live in the same area at the same time and compete with each other for food, water, mates, and space |
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| the role of an organism in an ecosystem |
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| the size of a population that occupies an area of limited size |
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| any biotic or abiotic factor that restricts the number of individual in a population |
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| a symbiotic relationship that benefits one partner but does not harm or help the other |
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| any close relationship between 2 or more different species |
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| a symbiotic relationship that benefits both species |
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| a symbiotic relationship that benefits one organism and does significant harm to the organism's host |
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| the largest number of individuals an environment can support and maintain for a long period of time |
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| the physical location where an organism lives |
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| organisms that obtain energy when they break down the bodies of dead organisms |
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| organisms that obtain energy when they feed on producers or consumers |
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| organisms that capture energy from the sun |
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| a series of overlapping food chains. it provides a more complete model of the way energy move through a community |
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| a simple way of showing how energy, in the form of food, passes from one organism to another |
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| the nitrogen cycle is the transfer from the atmosphere to ______ and back to the atmosphere or direction into the ______ again. |
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light
water
temperature
soil |
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| Write a 5 sentence paragraph explaining any organisms habitat and niche. The organism cannot be a human. |
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