The given graph shows the level of antibody in blood serum after vaccination and an exposure to the same antigen a few days later. The antibody concentration is higher in secondary immune response because at this point, the
Correct answer: D. Secondary response
- A. Innate immunity
- B. Passive immunity
- C. Primary response
- D. Secondary response
Explanation
Secondary response is faster and stronger due to memory cells.
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About Specific Defense Mechanism
Specific defense mechanisms provide targeted immunity through B lymphocytes, T lymphocytes, antibodies and memory cells that recognize particular antigens. Questions cover humoral and cell mediated responses, clonal selection, primary and secondary immune responses, vaccination and passive immunity, while distinguishing adaptive defenses from the immediate, non specific innate response.
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