no but you do get to go to the battle, survival and resort areas after you beat the elite four and in those three areas there are Pokemon like rattattata, fearow, slugma, graveler etc. which will help some in completing your national dext but you have to migrate a lot of Pokemon from game boy Pokemon games or you can buy action replay and use the cheat codes on it hope i helped
you cant
Maybe
Yes, Pokemon Diamond and Pearl's region name is Sinnoh Region.
there is no region after sinnoh in Pokemon diamond and Pokemon pearl.
In Pokemon Diamond, Pearl, and Platinum the region is called Sinnoh.
No. You CAN import Pokemon from there, though.
they are all the same
you are in sinnoh
You can't go to Celadon city in Pokemon Pearl. Its from an earlier region.
There are only 150 of them
Pokemon Pearl is in generation IV and is in the Sinnoh region. Emerald is in generation III and is in the Hoenn region. You can catch way more Pokemon in Pearl than Emerald.
You can't, the only region you can go to in Pearl, Diamond and Platinum is Sinnoh.