There are 649 pokemon.
The National Pokedex of Black or White.
649 [including Pokemon black and white]
complete your national pokedex, of course
Complete the Unova pokedex (after that coplete the national pokedex)
You get the national pokedex from Cedric back in Nuvema Town after you defeat N in the champion battle.
Unova Pokedex: Landorus National Dex: Mew
No, you can only migrate when you get national PokeDex.
it is Uxie before the national dex and Moltres after you get the national dex
Yes but only when you have the National Pokedex.
Mew three, exclusive to chaos black
The Hoenn Pokédex only goes to 202, so no one has that number, unless you mean the national Pokédex, then it is
Their are 150 in the Isshu/Unova pokedex, and the National Dex has 643 (which is the total of all the pokemon)