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.
The digestive system works with the excretory system. the digestive system helps get the waste products for the excretory system and the digestive system breaks down food to nutrients for the cardiovascular system to transport the nutrients to the cells in the body With circulation because the bloâ¦.