Probiotics in yogurt stimulate healthy digestive function, and help produce vitamin B12 and K. Strains of healthy bacteria added to yogurt and kefir include Lactobacillus bulgaricus, Streptococcus thermophiles, Lactobacillus acidophilus, Lactobacillus casei and Bifidus.
A nuclear family, elementary family or conjugal family is a family group consisting of two parents and their children. It is in contrast to a single-parent family, to the larger extended family, and to a family with more than two parents. Nuclear families typically center on a married couple; the nuclear family may have any number of children. There are differences in definition among observers; some definitions allow only biological children that are full-blood siblings, but others allow for a stepparent and any mix of dependent children including stepchildren and adopted children.
There are four different types of families. There is the single-parent family, the nuclear family, the extended family, and the composite family.   Single parent family - Câ¦onsists of one parent (usually the mother). This family usually becomes the nuclear family, as this parent will typically remarry or become married. In this type of family, the parent must juggle costs for day care along with everything else on usually a fairly low income. Nuclear family - This is the typical family. It consists of a husband, wife, and their children. Extended family - This includes the nuclear family and their relatives, such as grandparents, uncles, aunts, and cousins. Composite family - This is much the same as a nuclear family, though it contains two or more nuclear families sharing a common spouse.