Question

4. What are root nodules? How are they helpful?​

Answer 1

Answer:

Root nodules are useful for plants because they harbour nitrogen fixing bacteria such as Rhizobium, Bradyrhizobium, Mesorhizobium and Sinorhizobium that fixes atmospheric nitrogen which is available to the plants. Root nodules are usually formed in leguminous plants.

Explanation:

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Answer 2

Answer:

root nodules are found inside the root such as plant like legumious