Non-native species that disrupt ecosystems are called which term?

• A. Endemic Species
• B. Native Species
• C. Introduced Species
• D. Invasive Species

Answer: (D)

Invasive species are non-native organisms that spread widely and cause ecological or economic harm. When a species is introduced to a new region, it can compete with native species for resources, prey on native organisms, alter habitats, or carry diseases, leading to disruptions in the ecosystem. That combination of being non-native and causing disruption is what makes a species invasive.

To distinguish the terms a bit: introduced species are simply non-native to the area, with no guarantee they will cause harm or spread aggressively. Native species originate from the area. Endemic species are native to and found only in a particular place.