The rusty crayfish is harmful to native species of crayfish because it clear cuts the bottom of waterways leaving native species without a food supply.
Why might it be beneficial to regulate what species of plants and animals people are allowed to own in particular environments?
Why has the spread of the herbicide-resistant hydrilla through Florida’s waterways resulted in them no longer being navigable by most boats?
All nonnative species in an ecosystem are considered invasive species.
Which of the following is true concerning hull fouling from commercial shipping and recreational boating?
Cane toads have spread widely as an invasive species in Australia because they have very few natural predators, and many native species are harmed or killed when attempting to prey on them.
Which of the following is an example of mechanical control of nonnative species?
Nonnative species are only introduced unintentionally.
Invasive species often unbalance the ecosystems into which they are introduced because _______.
Nonnative species disrupt the natural variability of an ecosystem.
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