1.    Whyis it important to know a person's blood type before giving him orher a transfusion?
2.    What are antigens and antibodies? How are they involved in thebody's response to incompatible blood?
3.    Describe the immune response that occurs when an individualreceives a transfusion of incompatible blood.
4.    People with blood type O are considered to be universal donors.That is, they can donate blood to all other blood types. Using yourknowledge of blood types and the immune system, explain why this istrue.
5.    People with type AB blood are considered to be universalrecipients. That is, they can receive blood from all other bloodtypes. Explain why this is true using your knowledge of blood typesand the immune system.
