childofgodmeandu2 childofgodmeandu2

18-05-2017
Geography

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why do plants have nodules on the roots?

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yrehnauejnwr yrehnauejnwr

18-05-2017

Plants have these because root nodules are formed when nitrogen fixing bacteria called "rhizobia" start to enter the cells of a host plant. Rhizobia normally live inside of the soil and they can exist without a host plant.

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