Answer:
Prostaglandins causes fever.
Explanation:
Prostaglandin (PG) E2 is known as the hyperthermic agent which is caused in response to the thermoregulatory neurons to the pyrogens.
Answer:
The change of existing human infections and creature infections. Infections recently restricted to little, secluded populaces that would now be able to spread because of mechanical or social changes, for example, the improvement of moderate worldwide travel.
All of these do seem like possible injuries that could happen in sports the answer that makes the most sense to me is B since it seems like getting arthritis from sports injuries does not seem that common,