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.
An industry is a group of manufacturers or businesses that produce a particular kind of goods or services. Workers in the textile industry design, fabricate, and sell cloth. The tourist industry includes all the commercial aspects of tourism. You can use industry to refer to a group of similar businesses: The automobile industry makes cars and car parts. The food service industry prepares food and delivers it to hotels, schools, and other big facilities.