Protection, sensory perception, storage, absorption, sunscreen, dilation, and constriction
<span>They are considered accessory glands of the digestive system because they only send digestive juices and acids to the main digestive organs. Food does not actually enter any of the accessory organs.</span>
Because to demolish you need less labor, just a simple machine meanwhile to build something you need to take time to plan it out, design, etc.