| 21. | "Amitostigma " are dwarf terrestrial orchids, including some myco-heterotrophic species.
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| 22. | Heterotrophic organisms have to acquire and take in all the organic substances they need to survive.
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| 23. | Picoeukaryotes can be either autotrophic and heterotrophic, and usually contain a minimal number of organelles.
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| 24. | Microrganisms present are heterotrophic and autotrophic.
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| 25. | Ferric iron ( ) is a widespread anaerobic terminal electron acceptor both for autotrophic and heterotrophic organisms.
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| 26. | The photosynthetic activity fuels processes and conversions in the total biofilm community, including the heterotrophic fraction.
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| 27. | Heterotrophic scavengers would have accompanied the photosynthesizers in their migration out of the " hydrothermal ghetto ".
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| 28. | Heterotrophic microorganisms are important in oxidising carbon ( decomposition ) whereas autotrophic microorganisms are important in nitrification.
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| 29. | The Acetobacteraceae comprise the acetic acid bacteria, which are heterotrophic and produce acetic acid during their respiration.
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| 30. | Most pathogenic bacteria can be viewed as heterotrophic parasites of humans or the other eukaryotic species they affect.
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