alleryThe coralloid roots of Cycas are associated with:
Anitrogen-fixing cyanobacteria
Bparasitic root nematodes
Cmycorrhizal fungal hyphae
Dnitrifying soil bacteria
Answer & Solution
Correct answer: A. nitrogen-fixing cyanobacteria
Cycas has small specialised coralloid roots that house nitrogen-fixing cyanobacteria.
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