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| First producer of energy-rich compounds that are later used by other organisms. |
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| 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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| process used by plant and other autotroph to capture light energy and use 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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Definition
| process in which chemical energy is used to produce carbohydrates. |
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| Organism that obtains energy by eating only plants. |
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| Organism that relies on other organisms for its energy and food supply; also called heterotroph. |
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| Organism that obtains energy by eating animals. |
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| Organism that obtains energy by eating plants. |
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| Animal that consumes the carcasses of other animals. |
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Definition
| Organism that obtains by eating both animals and plants. |
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| Organism that breaks down and obtains energy from dead organic matter. |
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Definition
| Organism that feeds on plant and animal remains and other dead matter. |
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