Question

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

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

Fever increases body temperature and speeds up the body’s reaction to pathogens.

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

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

Answer 1

@mattfeury

Answer 2

@Australopithecus

Answer 3

The question could be rephrased as "which of these immune responses is specific. The activation of cytotoxic T cells depends on particular antigens which have been encountered previously. A much smaller response would come from a set of antigens from a pathogen which had not been encountered previously. I hope this is enough of a hint. If not let me know and I'll explain further.