The second line of defence against pathogens includes
Correct answer: B. phagocytosis, inflammation and fever
- A. antibody production by plasma cells
- B. phagocytosis, inflammation and fever
- C. the action of memory cells
- D. vaccination
Explanation
These responses act rapidly and without targeting a specific antigen, attacking anything foreign. Antibodies and memory belong to the specific third line, which is slower but precise.
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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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