Question

assessment 2 - threats to forests
forests: conservation & management
3 of 5
which of the following best describes an invasive species?
non - native species introduced to an area ultimately harming the ecosystem or human health
native plants which take up large areas of space and do not allow for other species to spread
native plants or animals which grow at an exceptionally fast rate
native or non - native species found in nearly every terrestrial area

Explanation:

An invasive species is defined as a non - native (or alien) species whose introduction to an ecosystem causes or is likely to cause harm to the environment, economy, or human health.

• The first option "Non - native species introduced to an area ultimately harming the ecosystem or human health" fits this definition.
• The second option refers to native plants, but invasive species are non - native.
• The third option also refers to native species (either plant or animal) growing fast, but again, invasive species are non - native.
• The fourth option is too broad as it just says a species (native or non - native) found in many terrestrial areas, not necessarily causing harm.

Answer:

Non - native species introduced to an area ultimately harming the ecosystem or human health