Why are the male testes located in the scrotum outside the body?

Why does the alligator have one of the strongest bite force and why does it run so fast i need to know i live in florida

Cells destroy body cells infected by a virus or bacteria.

1) what three conditions must be present for minerals to form through natural processes? 2) why are minerals considered inorganic substances? 3) how do oxides differ from other minerals that contain oxygen atoms? 4) how is a sulfide different from a sulfate? what makes native elements unique?