ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which organisms carry out nitrogen fixation?
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Animals
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bacteria
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mushrooms
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Explanation:
Detailed explanation-1: -Many heterotrophic bacteria live in the soil and fix significant levels of nitrogen without the direct interaction with other organisms. Examples of this type of nitrogen-fixing bacteria include species of Azotobacter, Bacillus, Clostridium, and Klebsiella.
Detailed explanation-2: -Legumes are able to form a symbiotic relationship with nitrogen-fixing soil bacteria called rhizobia. The result of this symbiosis is to form nodules on the plant root, within which the bacteria can convert atmospheric nitrogen into ammonia that can be used by the plant.
Detailed explanation-3: -Examples of nitrogen-fixing bacteria are species of Bacillus, Azotobacter, Klebsiella, and Clostridium.
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