Final answer:
A rise in fever increases metabolism and creates a hostile environment that challenges the survival of pathogens, assisting the body's immune system in combating infection.
Step-by-step explanation:
A rise in fever results in an increase in metabolism and makes it harder for pathogens to survive. The elevated temperatures of a fever inhibit the growth of pathogens and speed up cellular repair processes.
This physiological response is a defense mechanism of the body to fight off infections. It is important to note that while fever can play a role in enhancing the immune response, suppression of fevers should be limited to those that are dangerously high.