Rhizobium is present in which of the following parts of the plant?
A
Stem
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B
Root
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C
Leaf
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D
Flower
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Solution
The correct option is B Root Rhizobium is a nitrogen-fixing bacteria found in the root nodules of pulses like peas, green gram, etc. The bacteria fix atmospheric nitrogen and provide it to the plants to absorb. In return, the plants provide shelter and nutrition to the bacteria. This kind of mutually beneficial relationship is called a symbiotic relationship.