| 11. | Autotrophs flow of energy and nutrients from a productive base of self-feeding autotrophs.
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| 12. | Phototrophs can be either autotrophs or heterotrophs.
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| 13. | They discover that the Autotroph plans to leave the planet and warn its race about the weapon.
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| 14. | Being an autotroph it receives energy from growing on sulfur or even a variety of organic compounds.
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| 15. | Heterotrophs function as consumers in food chains : they obtain organic carbon by eating autotrophs or other heterotrophs.
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| 16. | Autotrophs are organisms that produce their own food ( production is greater than respiration ) by photosynthesis or chemosynthesis.
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| 17. | Some animals, such as corals, form symbiotic relationships with autotrophs and obtain organic carbon in this way.
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| 18. | Ecologists can broadly group all life forms into one of two trophic layers, the autotrophs and the heterotrophs.
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| 19. | As autotrophs, phytoplankton abundance is strongly influenced by the concentration of inorganic nutrients, such as nitrogenous compounds.
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| 20. | Other organisms, called heterotrophs, take in autotrophs as food to carry out functions necessary for their life.
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