There are several species of grain beetles that live on dry meal and do considerable damage to stored grain.In an experiment,a dozen jars of dry meal are set up and fifty individuals of each species,both males and females,are added to each jar.The food supply is not quite sufficient to last for six months and the size of the jar is adequate so that wastes do not become toxic.Most likely,examination of the jars in six months will find
A)a totally random variation in numbers of both beetles.
B)only one species per jar.
C)the same ratio of beetles as when you started (about half from each species).
D)only dead beetles in all jars due to intense competition for the niche.

Question

Quizplus · Accepted Answer

In a competitive environment with limited resources, one species is likely to outcompete the other, leading to competitive exclusion where only one species survives in each jar.

There Are Several Species of Grain Beetles That Live on Dry