How do nitrogen-fixing bacteria help cycle nitrogen through ecosystems?
A. They release...
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How do nitrogen-fixing bacteria help cycle nitrogen through ecosystems?
A. They release nitrogen into the atmosphere when they replicate their DNA.
B. They capture nitrogen from the atmosphere and convert it into forms that plants can use, like ammonia.
C. They convert sunlight into chemical energy which is then stored in the nitrogen.
D. They convert ammonia from animal feces and urine into forms that plants can use.
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