Controlling the Spread of Invasive Species Around the World Is

question 172

Multiple Choice

Controlling the spread of invasive species around the world is especially difficult because of the

• A) extensive global trade that makes accidental introduction easier.
• B) large number of species in the world.
• C) fact that the total number of species is unknown.
• D) lack of strict standards for monitoring sources of species introduction.
• E) lack of methods for eradicating invasive species.