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.
nuclear. adj. 1. (General Physics) of, concerned with, or involving the nucleus of an atom: nuclear fission. 2. (Biology) biology of, relating to, or contained within the nucleus of a cell: a nuclear membrane. 3. of, relating to, forming, or resembling any other kind of nucleus. 4. (General Physics) of, concerned with, or operated by energy from fission or fusion of atomic nuclei: a nuclear weapon.