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3.2 Energy, Producers, and Consumers
Vocabulary for 3.2
12
Biology
9th Grade
09/25/2014

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Term
autotroph- organism that is able to capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer
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primary producer - first producers of energy-rich compounds that are later used by other organisms.
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photosynthesis - captures light energy and uses it to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches.
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chemosynthesis - chemical energy is used to produce carbohydrates.
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heterotroph- organism that obtains food by consuming other living things; also called a consumer
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consumer - organism that relies on other organisms for its energy and food supply; also called a heterotroph.
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carnivore- organism that obtains energy by eating animals.
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herbivore - organism that obtains energy by eating only plants.
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scavenger - animal that consumes the carcasses of other animals.
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omnivore - organism that obtains energy by eating both plants and animals.
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decomposer - organism that breaks down and obtains energy from dead organic matter.
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detritivore - organism that feeds on plant and animal remains and other dead matter.
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