The document discusses different types of family structures. A traditional family structure consists of two married parents providing care for their biological children (nuclear family). Other common structures include: extended families which include grandparents, aunts/uncles etc; step families formed through remarriage; and single parent families headed by one parent raising their child(ren). The document also outlines diverse structures such as adoptive families, bi-racial families, transracial adoptive families, blended families formed when multiple families merge, foster families and immigrant/migrant families.