Use the Graph to Answer the Following Question

Multiple Choice

Use the graph to answer the following question. Which of the following is the best conclusion about the effect of a keystone species, based on the graphed data?

A) A keystone species has little interaction with other species in an environment.
B) Removing a keystone species from the community drastically reduces species richness.
C) Adding a keystone species to the community will make it more diverse.
D) Removing a keystone species from the community will eventually allow for the invasion of a new species.