Each of these substances is produced by exocrine or endocrine cells found in the mucosa. 1  The main exocrine product of the stomach is gastric juice â a mixture of mucus, hydrochloric acid, and digestive enzymes. 2  Gastric juice is mixed with food in the stomach to promote digestion.
Industry is the production of goods or related services within an economy. The major source of revenue of a group or company is the indicator of its relevant industry. When a large group has multiple sources of revenue generation, it is considered to be working in different industries.
Industry is a fairly generic term, but is most commonly used as a substitute term for a manufacturer of goods such as Pepsi or Ford. The term industry can also be used to refer to a very specific group of companies. For example, the financial industry, entertainment industry, and the service industry.The service industry is essentially non-good producing industries such as retail trade, wholesale trade, and the service industries.hat could be seen as the difference is that the service industries  are respondsible for d production of services for human both  tangible and intangible service while prod â¦ uction industries are  responsible for invention of both goods and services to satisfy  human unlimited wants. 3 people found this useful.