native species - a kind of organism that has been part of an ecosystem , invasive species - an introduced species that has a negative impact on an ecosystem., biodiversity - variety of lifeforms in an ecosystem or biome, threats of biodiversity - threats include habitat loss, overhunting/fishing, pollution, climate change, invasive species , biological control - using living organisms to reduce or eliminate the invasive species, prevention - first line of defense against invasive species, chemical control - applying poisons (herbicides or pesticides) to eliminate new species, impacts of invasive species - They can change an entire ecosystem, damage crops, kill native speciess, example of invasive species - zebra mussels, kudzu, and red fire ant, how can invasive species be introduced to an area - they can be brought there by accident or on purpose, unfair advantages of invasive species - They can outcompete the native species for resources, they have few predators, and they can spread diseases, physical control - barrier to prevent new species from entering new environment or physical removal,

Invasive Species

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