Sea Otters Have Been Used as an Example of the "Keystone

Multiple Choice

Sea otters have been used as an example of the "Keystone Species" concept.This means that sea otters

A) are the base of the food chain in their ecosystem.
B) are the dominant species in their ecosystem.
C) exert a strong influence on the structure and functioning of their ecosystem.
D) have been recently introduced and are recruiting other new species to the ecosystem.