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.
Gong is a Chinese surname. It is the English transcription of a number of different Chinese surnames: å®«, é¾, å±, å¬, é, å, è²¢, and å¼. Gong may also be a Korean surname, but this Korean Gong may be the English transcription of another surname Kong (å­).s of 2002, there are around 1.5 million people with the Gong é¾ surname in China, representing 0.2% of its population. They are most commonly found along the Yangtze River basin, especially in the province of Anhui.