The ABO system consists of A, B, AB, and O blood types. People with type A have antibodies in the blood against type B. People with type B have antibodies in the blood against type A. People with AB have no anti-A or anti-B antibodies.People with type O have both anti-A and anti-B antibodies.People with type AB blood are called universal recipients, because they can receive any of the ABO types. People with type O blood are called universal donors, because their blood can be given to people with any of the ABO types.eople with type O have both anti-A and anti-B antibodies. People with type AB blood are called universal recipients, because they can receive any of the ABO types. People with type O blood are called universal donors, because their blood can be given to people with any of the ABO types.
Previous (Social learning) Next (Social movement) Social mobility is the movement of the members of a particular society in terms of their social status, usually defined in terms of occupation and income (vertical mobility), or from one social group to another, not necessarily with concomitant change in social position (horizontal mobility).
DEFINITION of 'Social Entrepreneur'. A person who pursues an innovative idea with the potential to solve a community problem. These individuals are willing to take on the risk and effort to create positive changes in society through their initiatives. Examples of social entrepreneurship include microfinance institutions, educational programs, providing banking services in underserved areas and helping children orphaned by epidemic disease. The main goal of a social entrepreneur is not to earn a profit, but to implement widespread improvements in society. However, a social entrepreneur must still be financially savvy to succeed in his or her cause.