A) a symbiotic association of plant roots and certain fungi.
B) an association of algae with fungi.
C) a fungus parasitising root system of higher plants.
D) an association of Rhizobium with the roots of leguminous plants.
Correct Answer: A
Solution :
[a] Association 01 algae and fungi is referred to as lichen. Symbiotic association of Rhizobium with roots of leguminous plants is referred to as symbiosis. Mycorrhiza is symbiotic association between fungi and roots of higher plants. The fungal partner of mycorrhiza obtains food from roots of the higher plant and in return supplies mineral elements to it.
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