Answer :
Final answer:
Biological children are physically conceived by the parents within the nuclear family structure.
Explanation:
Biological children are physically conceived by the parents and are part of the nuclear family structure, which consists of two married biologically-related parents and their biological children. This contrasts with other family structures such as cohabiting families, same-sex cohabiting/married families, and adoptive families.
Learn more about Family Structures here:
https://brainly.com/question/32685137