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.
Responsible for the final stages of the digestive process, the colonâs function is threefold: to absorb the remaining water and electrolytes from indigestible food matter; to accept and stores food remains that were not digested in the small intestine; and to eliminate solid waste (feces) from the body.