What characteristic describes a blended or step family?

A blended or step family is characterized by the merging of two families, where each parent brings children from previous relationships into the new family unit. This creates a family dynamic that includes step-siblings, and often involves navigating relationships and interactions among children from different backgrounds and experiences. The notion of blending families is essential in understanding the diverse structures of family life today, reflecting varied paths that individuals and couples take in creating family after separation, divorce, or loss.

Considering the other options provides clarity on why they do not fit the definition of a blended or step family. A family with two parents raising a child refers more to a traditional nuclear family setup, which does not encompass the blended aspect. The idea of a family with at least one adopted child highlights adoption but does not specifically imply a blending of families. Finally, a single parent caring for a child represents another family structure that lacks the complexity of merging families with children from previous relationships, making it distinct from the blended family concept.