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33 Cards in this Set
- Front
- Back
Ecology
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The study of the interactions between organisms and their environment
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Biotic
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Describes living factors in the environment
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Abiotic
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Describes nonliving factors in the environment
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Population
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A group of individuals of the same species that live together inj the same area at the same time
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Community
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All of the populations of different species that live and interact in an area
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Ecosystem
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A community of organisms and their nonliving environment
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Biosphere
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The part of the Earth where life exists
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Herbivore
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A consumer that eats plants
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Carnivore
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A consumer that eats animals
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Omnivore
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A consumer that eats a variety of organisms
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Scavenger
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An animal that feeds on the bodies of dead animals
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Food Chain
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A diagram that represents how the energy in food molecules flows from one organism to the next
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Food Web
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A complex diagram representing the many energy pathways in a real ecosystem
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Prey
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An organism that is eaten by another organism
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Niche
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An organism's way of life and its relationships with its abiotic and biotic environments
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Energy Pyramid
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A diagram shaped like a triangle that shows the loss of energy at each level of the food chain
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Parasitism
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A symbiotic association in which one organism benefits while the other is harmed
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Carrying Capacity
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The largest population that a given environment can support over a long period of time
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Predator
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An organism that eats other organisms
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Symbiosis
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A close, long-term association between two or more species
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Mutualism
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A symbiotic relationship in which both organisms benefit
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Habitat
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The environment where an organism lives
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Commensalism
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A symbiotic relationship in which one organism benefits and the other is unaffected
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Coevolution
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The long-term changes that take place in two species because of their close interactions with one another
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Succession
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The gradual regrowth or development of a community of organisms over time
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Pioneer Species
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The first organisms to grow in an area underging ecological succession; usually lichens in primary succession and fast growing, weedy plants in secondary succession
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Tributary
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A small stream or river that flows into a larger one
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Littoral Zone
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The zonej of a lake or pond closest to the edge of the land
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Open Water Zone
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The zone of a lake or pond that extends from the littoral zone out across the top of the water and that is only as deep as light can reach through the water
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Deep Water Zone
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The zone of a lake or pond below the open-water zone where no light reaches
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Wetland
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An area of land where the water level is near or above the surface of the ground for most of the year
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Marsh
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A treeless wetland ecosystem where such plants as cattails and rushes grow
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Swamp
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A wetland ecosystem in which trees and vines grow
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