AP Biologymediummcq1 pt
A mutualistic relationship can become a problem for one partner if
A.the costs of the interaction exceed its benefits
B.the partners live far apart
C.one partner becomes a decomposer
D.the environment never changes
Explanation
Core Concept
Mutualism is context-dependent: under stress or scarcity, one partner's net benefit can turn negative, shifting the interaction toward parasitism.
Correct Answer
Athe costs of the interaction exceed its benefits
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