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A close symbiotic association between an alga and a fungus is called a:

A lichen
B mycorrhiza
C biofilm
D root nodule

Correct answer: A. lichen

Explanation: A lichen is a mutualistic partnership of a fungus and an alga (or cyanobacterium).

Concept context

Whittaker's five kingdom system covering Monera, Protista, Fungi, plus viruses, viroids, and lichens. A foundational NEET chapter on how living organisms are grouped.

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A close symbiotic association between an alga and a fungus is called a:

Concept context

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