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.
The United States remains the world's dominant industrial power. Like other economic sectors, industry in the United States is technologically sophisticated and includes a wide variety of different manufacturers and products. While industry has declined in relation to other. sectors, it has experienced steady growth.