Which of the following best describes the impact of invasives on native species?

The correct answer highlights a significant ecological impact that invasive species can have on native species. Invasive species often compete for resources such as food, habitat, and mates. This competition can disrupt the existing food chains, leading to changes in population dynamics. For instance, if an invasive predator enters an ecosystem, it can prey on native species that may not have evolved defenses against such threats, resulting in a decline of those native populations.

Invasive species may also introduce diseases to which native species have no immunity, further contributing to their decline. Additionally, they can alter habitats in a way that is detrimental to native populations, such as by changing vegetation patterns or nutrient cycling. Overall, the introduction of invasive species can be a catalyst for ecological imbalance, underscoring the importance of managing and controlling their spread to protect biodiversity and maintain healthy ecosystems.