science
Grade-10
Easy

Question

What exactly is an invasive species?

  1. A native (naturally occurring) species that is introduced into an area
  2. A non-native (not naturally occurring) species introduced into an area
  3. A keystone species in an ecosystem
  4. None of the preceding 

hintHint:

Not all non-native species are invasive.

The correct answer is: A non-native (not naturally occurring) species introduced into an area


    An invasive species is an organism that is not indigenous, or native, to a particular area. Invasive species can cause great economic and environmental harm to the new area. Not all non-native species are invasive.

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