In a gas kept at a constant temperature, all molecules move with the same speed.

False.

All molecules in a gas have a wide range of energies

Ifound this on google “the middle ear contains three tiny bones known as the ossicles: malleus, incus, and stapes. the ossicles were given their latin names for their distinctive shapes; they are also referred to as the hammer, anvil, and stirrup, respectively.” i hope this you for what your looking for