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.
Hong Name Meaning. Chinese : from a word meaning âwaterâ or âfloodâ. During the time of the emperors Yao and Shun in the 23rd century bc, there was a clan known as the Gonggongshi. They took the name Gong as a surname, but in order to escape their enemies, needed to change the character for their surname; by the addition of a component meaning âwaterâ, the name was changed to Hong.