What concept defines the basic building blocks of culture?

The concept that defines the basic building blocks of culture is best captured by social practices. Social practices encompass a wide range of activities and behaviors that are learned and shared within a community, forming the foundation of how individuals interact, communicate, and perceive the world around them. These practices include rituals, traditions, norms, and daily routines that shape an individual's cultural identity and influence social organization.

Rituals, while significant, are specific types of social practices that often relate to ceremonial actions and events. Traditions represent the transmission of cultural elements over time but are also subsets of broader social practices. Expressions, in the context of culture, could refer to artistic or communicative outputs, which are manifestations of the underlying social practices. Therefore, social practices are more encompassing and foundational as they reflect the ongoing interactions and shared meanings that constitute a culture, making this the most accurate answer for defining the basic building blocks of culture.