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Ch.18

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Ecology   the study of the interactions of living organisms with one another and with their environment  
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Biotic   describes living factors in the environment  
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Abiotic   describes the nonliving part of the environment, including water, rocks, light, and temperature  
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Population   a group of organisms of the same species that live in a specific geographical area  
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Community   all the populations of species that live in the same habitat and interact with each other  
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Ecosystem   a community of organisms and their abiotic environment  
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Biosphere   the part of Earth where life exists  
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Producers   organisms that use sunlight directly to make food  
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Photosynthesis   the process of using sunlight to make food  
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Consumers   organisms that eat other organisms  
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Herbivore   an organism that eats only plants  
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Carnivore   an organism that eats animals  
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Omnivore   an organism that eats both plants and animals  
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Scavengers   omnivores that dead plants and animals  
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Decomposers   organisms that get energy by breaking down dead organisms  
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Food Chain   the pathway of energy transfer through various stages as a result of he feeding patterns of a series of organisms  
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Food Web   a diagram that shows the feeding relationships between organisms in an ecosystem  
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Energy Pyramid   a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain  
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Limiting Factor   a resource that is so scarce that it limits the size of a population  
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Carrying Capacity   the largest population that an environment can support at any given time  
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Competition   when two or more individuals or populations try to use the same resource, such as food, water, shelter, space, or sunlight  
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Prey   an organism that is killed and eaten by another organism  
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Predator   an organism that eats all or part of another organism  
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Camouflage   blending in to a background  
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Symbiosis   a relationship in which two different organisms live in close association with each other  
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Mutualism   a relationship between two species in which both species benefit  
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Commensalism   a relationship between two organisms in which one organism benefits and the other is unaffected  
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Parasitism   a relationship between two species in which one species, the parasite, benefits from the other species , the host, which is harmed  
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Coevolution   the evolution of two species that is due to mutual influence, often in a way that makes the relationship more beneficial to both species  
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Pollinator   an organism that carries pollen from one flower to another  
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Food Chain   the pathway of energy transfer through various stages as a result of he feeding patterns of a series of organisms  
🗑
Food Web   a diagram that shows the feeding relationships between organisms in an ecosystem  
🗑
Energy Pyramid   a triangular diagram that shows an ecosystem's loss of energy, which results as energy passes through the ecosystem's food chain  
🗑
Limiting Factor   a resource that is so scarce that it limits the size of a population  
🗑
Carrying Capacity   the largest population that an environment can support at any given time  
🗑
Competition   when two or more individuals or populations try to use the same resource, such as food, water, shelter, space, or sunlight  
🗑
Prey   an organism that is killed and eaten by another organism  
🗑
Predator   an organism that eats all or part of another organism  
🗑
Camouflage   blending in to a background  
🗑
Symbiosis   a relationship in which two different organisms live in close association with each other  
🗑
Mutualism   a relationship between two species in which both species benefit  
🗑
Commensalism   a relationship between two organisms in which one organism benefits and the other is unaffected  
🗑
Parasitism   a relationship between two species in which one species, the parasite, benefits from the other species , the host, which is harmed  
🗑
Coevolution   the evolution of two species that is due to mutual influence, often in a way that makes the relationship more beneficial to both species  
🗑
Pollinator   an organism that carries pollen from one flower to another  
🗑


   

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Created by: E.N.
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