Read this article on how the adaptive immune system protects the body. Once you have completed the reading assignment, test your knowledge by clicking on the link, titled "Quiz Yourself on this Section," at the bottom of the page.
Study this page, and then select the "Test Yourself" link at the bottom of the page. Complete the "Antigen-specific immune response" and "White blood cell regulating production of antibodies and destruction of infected cells" problems. These are multiple-choice assessments. Choosing an option will bring you to a page with explanation. If this explanation is a "Tutorial," then read it carefully and return to the multiple-choice assessment. Be sure to complete both problems.
Complete this assessment. Select the "Self-Quiz" link to download the assessment in a PDF file and take the quiz. Click on "Answers" to see the correct answers. There is a detailed introduction to this assessment above the "Self-Quiz." Be sure to visit the "Results" section, and click on the links to study annotated figures.