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.

Question

Quizplus · Accepted Answer

Extensive global trade has made accidental introduction of invasive species much easier. With goods being transported across borders, it is challenging to keep track of every species accompanying them. Once introduced, invasive species can spread rapidly, causing ecological and economic harm.

Controlling the Spread of Invasive Species Around the World Is