Answer:
nuclear family.
Explanation:
Nuclear family is a term used to define a family group composed of a couple of adults who due to occurred and current sexual relations between the couple that was united by relationships, as diverse as possible, such as: physical, psychic, emotional, spiritual, social, political, among others, if any, allowed the emergence of first-degree relatives and their children.
In short, nuclear family is the term used to refer to a couple who have bred biological children, thus forming a family.
