Question

Since invasive species did not co-evolve with the other species in the ecosystem where they were introduced _______.
a.
they can unbalance the ecosystem
b.
they are considered a serious environmental problem
c.
they lack natural predators to help control their population
d.
all of the above

Answer 1

d. all of the above

Explanation: Because invasive species did not co-evolve with native species, they often lack natural predators or competitors in the new environment, can disrupt existing ecological relationships and balance, and thus are widely regarded as a serious environmental problem.