Topic: Competition for a Single Resource

Multiple Choice

Topic: competition for a single resource
Difficulty: medium
The resource requirements of two plant species, A and B, have been carefully studied. Researchers have determined the levels of a particular resource that will support equilibrium levels of each species. Species A needs more of this resource to maintain equilibrium than does species B. When these two species are set in competition (under conditions in which this resource is limiting) , what is likely to happen to the populations of species A and B?

A) Species A will displace species B.
B) Species B will displace species A.
C) Species A and B will continue to coexist.
D) There is not enough information to determine the outcome.