What is a major threat to the biodiversity and ecological function of the Great Lakes?

Question

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Invasive nonnative species are a major threat to the biodiversity and ecological function of the Great Lakes. These species can outcompete native species for resources, alter food webs, and disrupt ecosystem processes. They can also cause economic damage, for example, by clogging water intake pipes and damaging natural resources such as fisheries and recreational areas.

What Is a Major Threat to the Biodiversity and Ecological