Coralloid roots containing nitrogen-fixing cyanobacteria are found in:
- A.Pinus
- B.Cycas
- C.Marsilea
- D.Funaria
Show answer
Besides its normal roots, Cycas bears small branched roots that grow upward near the surface and look like coral; these coralloid roots hold cyanobacteria such as Anabaena and Nostoc, which fix atmospheric nitrogen and supply it to the plant.
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