Invasive+Species

What is an invasive species anyway? An invasive species is an organism in an environment where it does not belong. Sometimes this species is deliberately introduced, such as bringing a plant like corn to North America for cultivation, and other times it is accidental, such as emptying water from a ship that contained a mussel.

Are all invasive species problematic? Why or why not?

How do species get moved to new environments?

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Give several examples of invasive species you might find in Pennsylvania and explain the damage they can cause.