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.
The Liu (/ËljuË/) as transcribed in English can represent several different surnames written in different Chinese characters 1  : å / å, pinyin: Liu. 2  LiÃº a very common, surname as it was the family name Of Han dynasty. 3  emperors æ³: Pinyin liÇ In, Mandarin: Lau.  cantonesehe other variants of the romanised surname Liu, i.e. æ³, ç and å­, are uncommon among speakers of Hakka. The Indonesian-Chinese descent Latinise it according to Dutch pronunciation as Lauw. In Vietnamese, the name can either take the form Liá»u (in northern regions), or LÆ°u (in central or southern regions), or Lá»¥c.