The activity that is most likely a result of sudden, unexpected change in the environment would be the extinction of a certain type of shrimp. Any extinction will change the environment in its own way. The correct answer is C.
Answer - C Snakes periodically shed their skin in order to regrow new skin. Birds migrating to the south and bears hibernating are also a result of normal periodic transitions. However, extinction of a type of shrimp is most likely a result of a drastic change in the environment.
