Oshawott evolves into Dewitt at lvl 17...also the time it can learn razor shell.
Weavile does not evolve in Pokemon Black.
All the starters evolve in Pokemon Black. Many other Pokemon evolve as well.
Audino doesnt evolve in Pokemon black and white
Throh don't evolve in Pokemon Black and White.
lampent evolve litwick
Maractus does not evolve.
No, Heatmor does not evolve.
It doesn't evolve
no it does not evolve on Pokemon black or white
Durant does not evolve.
No, Cryogonal does not evolve in pokemon black and white
Raticate can not evolve, it is a fully evolved pokemon.