This is the energy of vibrations carried through solids, liquids or gases. it travels in waves, but it cannot move through empty space.

The correct answer is option A. Fever increases metabolism, speeding up the body’s reaction to the pathogens.

Explanation:

The non-specific immune response is an immediate response for any biological, chemical factors and pathogen-independent. It acts by secreting mucus, wax or other secreting and traps foreign Non-specific immunity is not forming any immunologic memory.

The nonspecific internal defenses include 3 main path that is phagocytic and natural killer cells, fever, and the inflammatory response. Fever increases the body temperature and metabolic process that speed up reaction or response against the pathogens.

Thus, the correct answer is option A. Fever increases metabolism, speeding up the body’s reaction to the pathogens