Snivy evolves into Servive at level 17, Tepig evolves into Pignite at level 17, and Oshawott evolves into Dewott at level 17.
Furthermore, Servive evolves into Serperior at level 36, Pignite evolves into Emboar at level 36, and Dewott evolves into Samurott at level 36.
The best way to remember their evolution levels is by remembering one of the evolution line and remind yourself the other two follows the same pattern.
pignite
Audino doesnt evolve in Pokemon black and white
Throh don't evolve in Pokemon Black and White.
No, Cryogonal does not evolve in pokemon black and white
Yes, you do get to choose a starter Pokemon in Pokemon Black and White Versions.
The reason they don't in the other games. It's tradition.
no it does not evolve on Pokemon black or white
you mean STUNFISK in Pokemon black and white, and no he does NOT evolve at all
Yes
You have to trade a starter to another Pokemon white or black game then trade the Pokemon back.
Relicanth does not evolve.
No.