18. Immunoglobulins harvested from a donor who developed resistance against

18. Immunoglobulins harvested from a donor who developed resistance against specific antigens provide: A. O natural active-acquired immunity. B. O artificial active-acquired immunity. O natural passive-acquired immunity. D. O artificial passive-acquired immunity. 19. The development of memory cells to protect the individual from a second exposure is: A. O natural active-acquired immunity. B. O artificial active-acquired immunity. C. O natural passive-acquired immunity. D. O artificial passive-acquired immunity. 20. As a type of second-line defense, these lymphocytes act nonspecifically to kill cells that have been infected by certain viruses and cancer cells. A. OB cells B. ONK cells C. OT cells D. O Lymphokines 21. Myasthenia gravis, psoriasis, and rheumatoid arthritis are examples of: A. O autoimmune disease. B. OAIDS. C. O anaphylaxis. D. O allergy. 2. Hypersensitivity that appears 24 to 48 hours after exposure to an antigen is called: A. hypersplenism. B. Oimmediate hypersensitivity. C. O delayed hypersensitivity. D. O lymphedema.

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