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7. A zebra mussel is discovered in a lake in Pennsylvania for the first time. Why would this make an ecologist worried?
A zebra mussel is discovered in a lake in Pennsylvania for the first time. This would make an ecologist worried because Zebra mussels are an invasive species that can completely disrupt an ecosystem.
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Asked 5/8/2019 7:20:08 AM
Updated 3/28/2020 9:38:44 PM
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A zebra mussel is discovered in a lake in Pennsylvania for the first time. This would make an ecologist worried because Zebra mussels are an invasive species that can completely disrupt an ecosystem.
Added 3/28/2020 9:38:44 PM
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