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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Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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