Even the smell of food can generate saliva, which is secreted by the salivary glands in the mouth, contains an enzyme, salivary amylase, which breaks down starch. Teeth, which are part of the skeletal system, play a key role in digestion. In carnivores, teeth are designed for killing and breaking down meat.eferences to the digestive system can be traced back to the ancient Egyptians. Some milestones in the study of the gastrointestinal system include: 1  Claudius Galen (circa 130-200) lived at the end of the ancient Greek period and reviewed the teachings of Hippocrates and other Greek doctors.
DEFINITION of 'Organizational Behavior-OB'. Organizational Behavior (OB) is the study of the way people interact within groups. Normally this study is applied in an attempt to create more efficient business organizations.
Organizational Change Organizational change is the process by which organization move from their present state to some desired future state to increase effectiveness. When an organization system is disturbed by some internal or external forces change frequently occur or any alteration which occur in the overall work environment of an organization. 14-1 Change happen for the pressure of both internal and external forces in the organization.C. Change in any part of the organization affect the whole organization. and other element of the organization. structure.CHARACTERSTICS OF O. 14-2 . technology.