| 1. | Mycorrhizal activity increases the phosphorus concentration available in the rhizosphere.
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| 2. | The larvae are aquatic and live their entire lives in the rhizosphere.
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| 3. | A healthy rhizosphere contains some 7 million microorganisms per hectare.
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| 4. | Soil which is not part of the rhizosphere is known as bulk soil.
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| 5. | Microbial populations are typically higher in the rhizosphere than in adjacent bulk soil.
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| 6. | It is able to withstand high temperatures and high acidity in its rhizosphere.
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| 7. | Protozoa and nematodes that graze on bacteria are also more abundant in the rhizosphere.
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| 8. | The extent of arbuscular mycorrhizal colonization and species affects the bacterial population in the rhizosphere.
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| 9. | In the rhizosphere, plants may suffer from wounds by soil pathogens or other sources.
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| 10. | These bacteria are common in the bulk soil and increase in numbers in the rhizosphere.
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