Besides paddy fields, cyanobacteria are also found inside the vegetative part of the:

Correct answer: D. Cycas

  • A. Equisetum
  • B. Psilotum
  • C. Pinus
  • D. Cycas

Explanation

Coralloid roots of Cycas have a symbiotic association with blue­-green algae like Nostoc and Anabaena. Coralloid roots are irregular, negatively geotropic, dichotomously branched coral-like roots which do not possess root hairs and root caps.

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