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.
A business, also known as an enterprise or a firm, is an organization involved in the provision of goods, services, or both to consumers.Businesses are prevalent in capitalist economies, where most of them are privately owned and provide goods and services to customers in exchange for other goods, services, or money.usinesses may also be not-for-profit or state-owned. A business owned by multiple individuals may be referred to as a company. Business can refer to a particular organization or to an entire market sector, e.g. the music business.