Question Detail

BIO 102 Objective Question

Question

Lichens represent a mutualistic association between a fungus (typically Ascomycota or Basidiomycota) and a:
Options
A Plant root system
B Photosynthetic organism (alga or cyanobacterium)
Correct Answer
C Arthropod such as an ant
D Bacterium that fixes nitrogen
Correct Answer

Option B is the correct answer.

Detailed Explanation

Lichens are a mutualism in which a fungus lives in close contact with a photosynthetic organism—either a eukaryotic alga or a prokaryotic cyanobacterium. Neither organism typically survives alone outside the symbiotic relationship.

Hint

The photosynthetic partner provides carbon and energy to the fungus.

Question Info