Invasive species pose a significant threat to ecosystems for several reasons, and the most relevant options you provided include:
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Invasive species can do intense damage, so much so that ecosystems may not be able to recover. - This option highlights the severity of the impact invasive species can have on ecosystem stability and health.
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Invasive species provide no added benefit or diversity to the ecosystem. - This addresses the fact that invasive species often disrupt existing ecological balances without contributing positively to the biodiversity of the area.
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Invasive species are impossible to control once they are introduced and spread rapidly. - This option reflects the challenges of managing and eradicating invasive species after they have established themselves.
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Invasive species can replace native species, forcing their migration out of the area. - This underscores the competitive advantage that invasive species often have over native species, leading to declines or extinctions of local flora and fauna.
Each of these options presents a valid concern regarding the impact of invasive species on ecosystems, but a more comprehensive answer might focus on the combined effect of these factors leading to irreversible damage in many cases.