Which of the following represents an example of ecological management and conservation through a biological association?
Constructing dams for hydroelectric power
Introducing invasive species for pest control
Clear-cutting forests for timber extraction
Establishing marine protected areas
Correct answer is D
Ecological management and conservation involve strategies and practices aimed at preserving and protecting natural ecosystems and their biodiversity. Among the options provided, the establishment of marine protected areas is an example of such management and conservation through a biological association.