Final answer:
Communitas is a sense of community and social solidarity, and it emphasizes the importance of collective responsibility over individual interests in human societies.
Step-by-step explanation:
Communitas refers to a sense of community and social solidarity among individuals. It is the feeling of togetherness and shared values within a community. In human societies, communitas relates to social structures by emphasizing the importance of community and collective responsibility over individual interests. Communitarianism, a theory about human identity, argues that people's values and worldviews are shaped by their social environment, and individuals have obligations to their communities that may supersede their own self-interests.