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).
1 We see this as well in social mobility.  2 Commonly we find that upward mobility involves the presentation of proper performances and that efforts to move upward and efforts to keep from moving downward are expressed in terms of sacrifices made for the maintenance of front. (p.36).