10. When an organ or tissue is transplanted between genetically different individuals it is called a(n)
a. xenograft.
b. isograft.
c. autograft.
d. allograft.

11. Which of the following blood types cannot receive a blood transfusion from type O blood type?
a. Type A
b. Type B
c. All blood types can
d. None of the blood types other than O can

12. Which of the following is a systemic autoimmune disease?
a. Graves’ disease
b. Multiple sclerosis
c. Myasthenia gravis

d. Rheumatoid arthritis