Two species of beetles are both herbivores on the same host plant, and the presence of either species reduces the population growth of the other. The relationship between the beetles is best described as
A) antagonistic.
B) predation.
C) herbivory.
D) competition.
E) amensalism.

Question

Quizplus · Accepted Answer

The fact that the presence of one species reduces the population growth of the other species indicates that they are competing for resources (in this case, the host plant). Therefore, the relationship between the beetles is best described as competition.

Two Species of Beetles Are Both Herbivores on the Same