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.
This difference pertains to their scope; a sector refers to a large segment of the economy, while the term industry describes a much more specific group of companies or businesses. A sector is one of a few general segments in the economy within which a large group of companies can be categorized.