Per NCERT, what is a LICHEN — referenced in the 'Bridging Science and Society' box?
AA symbiotic association of an autotrophic alga + a heterotrophic fungus; also used as a natural bioindicator of air quality
BAn animal that eats fungi
CA type of pure fungus only
DA type of pure plant
Answer & Solution
Correct answer: A. A symbiotic association of an autotrophic alga + a heterotrophic fungus; also used as a natural bioindicator of air quality
Per NCERT §12.6.4, lichens = alga + fungus symbiosis, used as bioindicators of pollution. The other options misstate.
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