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kompoz [17]
3 years ago
15

Why do plants have nodules on the roots?

Geography
1 answer:
horrorfan [7]3 years ago
3 0
Plants have these because root nodules<span> are formed when nitrogen fixing bacteria called "rhizobia" start to enter the cells of a host </span>plant<span>. Rhizobia normally live inside of the soil and they </span>can<span> exist without a host </span>plant<span>.</span>
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