Answer:
E. climax
Step-by-step explanation:
The point of equilibrium in a community is not something that happens very often in nature, in fact it is relatively rare, but there are several examples that have shown how this works. When an equilibrium is reached in a community, it is basically a community consisted of dominant, prominent, small number of species that manage to create a stable community. The state of equilibrium is also known as a climax community. This type of community appears when there's a situation in which the web of biotic interactions between the organisms becomes so intricate that there's simply no way that another organisms can be admitted into the community.