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Multiple Choice
Which of the following is an example of a mutualistic association involving a fungus?
A
Athlete's foot
B
Lichen
C
Mold on bread
D
Ringworm
Verified step by step guidance
1
Understand the concept of mutualism: Mutualism is a type of symbiotic relationship where both organisms involved benefit from the association.
Identify the organisms involved in each option: Athlete's foot involves a fungus and a human host, mold on bread involves a fungus and bread, ringworm involves a fungus and a human host, and lichen involves a fungus and an alga or cyanobacterium.
Analyze the relationships: In athlete's foot and ringworm, the fungus benefits at the expense of the human host, which is not mutualistic. Mold on bread involves the fungus decomposing the bread, which is not a mutualistic relationship.
Examine the lichen relationship: In lichens, the fungus provides structure and protection, while the alga or cyanobacterium performs photosynthesis, providing nutrients to the fungus. Both organisms benefit, making it a mutualistic relationship.
Conclude that the correct example of a mutualistic association involving a fungus is lichen, as both the fungus and its photosynthetic partner benefit from the relationship.