DIRECTIONS: Choose the letter of the answer choice that best answers the question.
1. Which of the following is part of the nonspecific defenses?
A. the inflammatory response
B. the primary immune response
C. the humoral immune response
D. the secondary immune response
2. Which of the following statements is false?
F. Autoimmune diseases can be fatal.
G. Autoimmune diseases are a type of cancer.
H. Multiple sclerosis is an autoimmune disease. J. Autoimmune diseases target the body's cells.
3. Which of the following is the most common means of HIV transmission?
A. receiving a blood transfusion
B. performing experiments with HIV
C. shaking hands with a person who has AIDS
D. having sexual contact with an HIV-infected person
INTERPRETING GRAPHICS: The image below shows two kinds of structures involved in an immune response. Use the image to answer the questions that follow.
4. What are the structures labeled A?
J. receptor proteins
5. What are the structures labeled B?
D. receptor proteins
6. Why do structures A and B interact with each other?
F. Both are viral proteins.
G. Both are "nonself" structures.
H. They are complementary shapes.
J. They are produced by the same cells.
DIRECTIONS: Complete the following analogy.
INTERPRETING GRAPHICS: The graph below shows the number of helper T cells over time from the onset of HIV infection. Use the graph to answer the question that follows.
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