What is the role of legumes in biological nitrogen fixation?

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Legumes are not involved in biological nitrogen fixation

Legumes are the primary nitrogen-fixing organisms

Legumes release nitrogen into the soil

Legumes host nitrogen-fixing bacteria in their root nodules

answer is C.

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Detailed Solution

Legumes are plants that form a symbiotic relationship with nitrogen-fixing bacteria.

Legumes, such as peas, beans, and soybeans, play a crucial role in biological nitrogen fixation. They host nitrogen-fixing bacteria, such as Rhizobia, in their root nodules. These bacteria have the ability to convert atmospheric nitrogen (N2) into a form of nitrogen that can be used by the plant for growth and development. This process of biological nitrogen fixation is important for maintaining soil fertility and supporting sustainable agriculture practices. Legumes, therefore, serve as important hosts for nitrogen-fixing bacteria and play a key role in improving soil health.

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