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19 Cards in this Set
- Front
- Back
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ecology
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scientific study of the interactions among organisms and between organisms and their environment
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biotic factor
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any living part of an environment
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abiotic factor
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nonliving physical or chemical condition in an environment
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population
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group of individuals of the same species living in a particular area at the same time
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community
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all the organisms living in an area
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ecosystem
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community of living things plus the nonliving features of the environment that support them
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biosphere
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all the parts of the planet that are inhabited by living things; sum of all Earth's ecosystems
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habitat
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an organism's specific environment, with characteristic abiotic and biotic factors
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TROPICS
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regions between 23.5° N latitude and 23.5° S latitude; warmest temperature zones on Earth
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polar zones
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the regions north of the Arctic Circle (66.5° N) and south of the Antarctic Circle (66.5° S), that receive the smallest amount of direct sunlight year-round
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temperate zones
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latitudes between the tropics and polar regions in each hemisphere
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current
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riverlike flow pattern within a body of water
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microclimate
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climate in a specific area that varies from the surrounding climate region
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biome
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major type of terrestrial ecosystem that covers a large region of Earth
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tropical rain forest
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type of forest near the equator that receives as much as 250 cm of rainfall yearly
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savanna
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grassland with scattered trees; found in tropical regions of Africa, Australia, and South America
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desert
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land area that receives less than 30 centimeters of rain per year
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chaparral
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temperate coastal biome dominated by dense evergreen shrubs
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temperate grassland
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biome characterized by deep, nutrient-rich soil that supports many grass species
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