There is a phase when the early embryo consists only of simple epithelial layers. Later, the three primitive germ layers give rise to 4 primary tissues: 1. Epithelium  the cells are generally applied closely one to another with little cementing substance.
See also: Confucius and Gong (surname) Kong (å­, /ËkoÊÅ/) is a Chinese and Korean surname. It can also be written as Kung in Taiwan, Hung in Hong Kong, Khá»ng in Vietnam, and Gong in Korea. There are around 2.1 million people with this surname in China in 2002, representing 0.23% of the population.
What do Korean names mean? Korean last names are passed from a father to his children, but first names are selected by the parents. There are two types of names that a parent can select: Sino-Korean names, and Pure Korean names. Sino means Chinese, so Sino-Korean names are names that come from Chinese characters. This type of name is the most common by far. In order to make a Sino-Korean name, the parents will choose two Chinese characters that have the pronunciation of a name that they want.