Question

What happens when alien species are introduced unintentionally or deliberately?

• A. Decrease of alien species
• B. Increase in habitat
• C. They turn invasive and cause increase species
• D. They turn invasive and cause decline or extinction of indigenous species

Answer 1

Answer:

D. They turn invasive and cause decline or extinction of indigenous species

• The unintentional or deliberate introduction of alien (new) species into a habitat cause the aliens to turn invasive and thus causing the decline or extinction of indigenous species.

• They can affect all types of organisms (animals, plants, fungi, and microorganisms) and ecosystems.