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Food Chains and Food Webs - Vocabulary

Food Chains and Food Webs - Vocabulary

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Tags: science   rst.6-8.4   rst.9-10.4   rst.11-12.4   high school   ecology   resources   food   ngss   hs-ls2-1   ls2-1   ls2   chain   web  

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Food chain
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A successive line of organisms in which each organism before uses the one after as a food source
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Food web
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An interconnected network of food chains in an ecosystem
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Ecosystem
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A network of relationships among organisms and between organisms and their physical environment
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Energy pyramid
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A diagram that shows the movement of energy in an ecosystem
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Decomposers
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Organisms that break down dead or non-living organic wastes for food
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Detritivore
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An organism, typically an animal, that feeds on dead or decomposing organisms
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Carnivore
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An organism that only eats other animals
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Herbivore
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An organism that eats only plants
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Trophic level
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The feeding position an organism holds in a food chain
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Autotroph or Producer
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An organism that makes its own food either through photosynthesis or chemosynthesis
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Heterotroph or Consumer
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An organism that cannot make its own food and must obtain energy from other complex organisms
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Detritus
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Dead or decomposing matter such as dead leaves, feces, and decaying animals and plants
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Saprotroph or saprophyte
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An organism (e.g. fungus, bacteria, worm) that feeds on organic remains after other decomposers
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10% Rule
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The idea that only 1/10 of energy gets passed on from one trophic level to the next
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Chemosynthesis
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process that uses energy from the oxidation of inorganic compounds to turn carbon dioxide into food
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Biomass
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The amount of living matter in a given environmental area or volume
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Omnivore
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An organism whose diet includes both plants and animals
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Predator
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An organism that hunts and kills other organisms for food
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Prey
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An organism that is hunted and eaten by another organism
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Scavenger
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An organism that feeds on dead or decaying animals and/or plants
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Photosynthesis
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the process of converting carbon dioxide into food using the sun’s energy
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Biotic factor
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Any living component of the environment
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Abiotic factor
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Any non-living component of the environment
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Chemoautotroph
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An organism that obtains the energy to make its own food by oxidizing inorganic compounds
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Photoautotroph
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An organism that makes its own food by using light as an energy source
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