Which theory focuses on how the parts of a society work together in ensuring the survival of the whole?

The structural functional perspective

Structural functionalism is a structure for raising theory that sees society as a complicated arrangement whose parts work collectively to strengthen solidarity and perseverance. Two theorists, Robert Merton, and Herbert Spencer were influential contributors to this prospect.

Structural Functionalism is a sociological approach that strives to demonstrate why society operates the way it does by concentrating on the relations between the several social institutions that make up society.

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