Question

Although the term "invasive species" is imprecise, non-native plants and animals are a threat to many ecosystems.

Which sentence gives the best support for this claim?
A.) Some non-native species, such as rabbits in Australia, were originally introduced with good intentions.
B.) In 1859, Thomas Austin released 24 rabbits into the wild in Australia, saying, "The introduction of a few rabbits could do little harm."
C.) By the 1920s, Australia's rabbit population had grown from 24 to an estimated 10 billion.
D.) Rabbits, which compete with native wildlife and damage vegetation, have had a devastating effect on Australia's environment.

Answer 1

Option D because it uses the key word "devastating effect" while the other options suggest that the non-native plants and animals are minimal or beneficial in effect to others.

Answer 2

D. Rabbits, which compete with native wildlife and damage vegetation, have had a devastating effect on Australia's environment.

Step-by-step explanation:

The term "invasive species" is being defined here which is classified as a living organism that is non-native to an ecosystem and may be destructive to the environment, ecosystem and human health. The fourth statement compliments this point as it depicts the catastrophic harm caused by the rabbits in Australia as these are invasive species that compete with the native wildlife and invade the native environment in numerous ways. They possess a threat to the biological diversity of a place as exemplified in Australia's case. These species colonize the natural area and leaves alarmingly adverse impacts ecologically.