Prepare for the MCAT Psychological, Social, and Biological Foundations of Behavior Test. Study with flashcards and multiple choice questions with hints and explanations. Get ready for your exam!

A key aspect of social class is a system of stratification based on societal similarities. Social class is defined by various factors, including economic status, education, occupation, and often cultural factors. This stratification creates a hierarchical structure within society, where individuals and groups are classified based on their access to resources and societal opportunities.

This classification reflects not only financial wealth but also social networks, education levels, and cultural capital, which can create similarities within the same social class. For example, people in the same social class often share similar lifestyles, values, and perspectives due to their shared experiences and contexts, leading to a social cohesion among them.

The other options do not accurately capture the complexity of social class. For instance, uniform income across all demographics fails to account for the varying financial realities and lifestyles of individuals within different social strata. A government-imposed classification overlooks the organic and multifaceted nature of social class development. Lastly, the idea of equal opportunities disregards the inherent inequalities that exist within social class structures, as those from disadvantaged backgrounds often face systemic barriers to achieving equality in opportunities.