Overfishing of lobsters off the east coast of Canada has allowed the population of its prey, sea urchins, to e

Overfishing of lobsters off the east coast of Canada has allowed the population of its prey, sea urchins, to expand enormously. This is an example of_______

A. a climax community
B. succession
C. removal of a keystone species
D. a biome

Removal of a keystone species. A climax community has reached an evolutionary equilibrium; succession is a part of normal natural selection, and a biome is a geographical area with a specific ecology, such as a rain forest or a polar biome. It includes the species evolved to live in a specific biological situation.
A keystone species is necessary to keep the environment balanced. When lobsters are over fished, the balance of predator to prey is upset and the prey reproduces without any balance, eventually overpopulating their area.