Nitrogen-fixing bacteria
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Steve_O
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BIOLOGY
Microbiology
Nitrogen-fixing bacteria
Invisible architects of soil fertility transform air into life’s essential nutrient
44 hours ago
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Why are nitrogen-fixing bacteria essential for plant growth and soil fertility?
Because they produce oxygen needed for plant respiration.
Because they directly absorb nitrogen gas from the atmosphere into plant roots.
Because they convert atmospheric nitrogen into ammonia, a form plants can absorb and use.
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steve1112
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BIOLOGY
Microbiology
Nitrogen-fixing bacteria
Nitrogen-fixing bacteria convert inert atmospheric nitrogen into vital nutrients for plants and ecosystems
7 Feb 2026
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What critical role do nitrogen-fixing bacteria play in Earth's ecosystems?
They produce oxygen through photosynthesis to support plant growth.
They consume ammonia and release nitrogen gas back into the atmosphere.
They convert atmospheric nitrogen into ammonia, making nitrogen available to plants.
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