Biology PYQ 206 of 227 · Ecology, Ecosystem & Biodiversity

The interaction between algae and fungi to form lichens is called

  1. AParasitism
  2. BMutualism
  3. CCommensalism
  4. DConversion
  5. ENone of the above/More than one of the above

65th BPSC

Show answer and explanation

Correct answer: (b) Mutualism

Explanation

Lichens show mutualism, where both partners benefit; the alga performs photosynthesis to make food while the fungus supplies water, minerals and shelter.

In parasitism one organism gains and the host suffers; in commensalism only one benefits while the other is unaffected.

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