According to Merton's , people feel tension when they are exposed to cultural goals that they are unable to obtain because they do not have access to culturally approved means of achieving those goals.

strain theory              

Explanation:

Strain theory: In criminology and sociology, the term "strain theory" was introduced by Robert K. Merton during 1938. The theory is described as a process through which it puts or creates pressure on different individuals to gain distinct socially accepted goals or things irrespective of the fact that these people lack a certain means of achieving those goals.

It often states that it puts pressure on a person to lead to or commit a crime and is also referred to as a structural theory.

In the question above, the given statement signifies the "strain theory".

mammals. mammals of the piedmont region live in several habitats such as wetlands, fields and forests. raccoons live across the state including the piedmont. they've adapted to environmental changes, including the loss of natural habitat.