A boiler is a closed vessel in which water or other fluid is heated. The fluid does not necessarily boil. (In North America, the term furnace is normally used if the purpose is not to boil the fluid.)
What are the major jobs of the digestive system? the main jobs of the digestive system system is to break down food so it can be absorbed into the blood stream and large intestine, to nourish the cells to provide energy , anâ¦d to get rid of the leftover food that the body cannot use. 4 people found this useful.
Digestive enzymes work specifically in the stomach and intestines to help the body digest food, absorb nutrients, relieve gastro-intestinal disorders and assist in weight loss. Systemic enzymes strengthen the body as a whole by passing through the digestive system and targeting tissue and organs.