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.
Kong Company. Kong Company (stylized as KONG) is an American company headquartered in the State of Colorado that develops designs and produces lines of dog toys and cat toys. Its primary line of product is a snowman-like chew toy for dogs also named Kong.