Which of the following best describes an example of a specific immune response to pathogens?

A:Cytotoxic T cells are activated and destroy cells that pathogens have invaded.

B:Fever increases body temperature and speeds up the body's reaction to pathogens.

C:Phagocytes identify cells invaded by pathogens and mark them for destruction.

D:Mucus traps pathogens and destroys them before they can enter the body.

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Biology

3 June, 13:48

Which of the following best describes an example of a specific immune response to pathogens?

A:Cytotoxic T cells are activated and destroy cells that pathogens have invaded.

B:Fever increases body temperature and speeds up the body's reaction to pathogens.

C:Phagocytes identify cells invaded by pathogens and mark them for destruction.

D:Mucus traps pathogens and destroys them before they can enter the body.

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Answers (1)

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Eleanor · Answer 1

The answer is A:Cytotoxic T cells are activated and destroy cells that pathogens have invaded.

A specific immune response is antigen-dependent while a non-specific immune response is antigen-independent. The non-specific immunity is also called innate immunity. The examples of the non-specific immunity are fever (choice B), phagocytosis by macrophages (choice C), and skin and mucus (choice D). Cytotoxic T-cells are an example of the specific immune response. These cells recognize antigens on infected cells and kill them before the infection could spread.