Final answer:
The extinction of a type of shrimp is most likely a result of a sudden, unexpected change in the environment.
Step-by-step explanation:
The activity that is most likely a result of a sudden, unexpected change in the environment is The extinction of a type of shrimp. When a sudden change in the environment occurs, it can lead to a loss of habitat or resources, which can in turn lead to the extinction of certain species. This event represents a significant and sudden impact on the ecosystem.
Birds migrating to the south and bears hibernating are not necessarily a direct result of sudden, unexpected changes in the environment. These activities are driven by predictable seasonal changes and are part of the natural behavioral patterns of these animals.
A snake shedding its skin is also a part of its natural life cycle and not directly linked to sudden changes in the environment.
Learn more about sudden change in environment