APFIVE Complex Parasitism and Natural Selection
A particular fungal species infects tree seedlings in a forest, causing reduced growth and eventual mortality in 70% of infected individuals. However, the surviving 30% of infected trees demonstrate enhanced drought resistance compared to uninfected trees. From an ecosystem resilience perspective, this relationship most accurately represents:
A
A complex parasitism that may drive natural selection
B
A keystone mutualism essential for ecosystem function
C
A density-dependent commensalism relationship
D
An example of ecological succession acceleration
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