Why is it important for the testes to be suspended in a sac outside the body cavity?

How do diseases caused by bacteria and diseases caused by viruses react to antibiotics?

It is believed that europa, one of jupiter’s moons has an ocean beneath its surface. based on how earth’s oceans and atmosphere are believed to have formed, what can be said about europa’s supposed ocean? the arrival of in the early days of europa’s existence could have formed its ocean. it is likely that the water experienced , similar to earth. it is also possible that this water is retained beneath europa’s surface and in its atmosphere due to europa’s .

In which of the following relationships is one organism always benefited while the other organism is always harmed