Invasive species are the second largest threat to native species and populations after habitat loss. Infact, it's considered greater threat than pollution, harvest, and diseases COMBINED!!! They threaten invasive species by causing and spreading diseases. Well, the question is what are invasive species and what make them so invasive. A plant, fungus, or animal species that doesn't belong to a certain environment. They compete with native species for food and are predators to smaller ones.They change the native habitat. Also, they crossbreed with native species and so much more. They reduce the population of native species. Basically, this is a big problem in this world!
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