Poison type.
Grimer is #88 in the national pokedex, and it is a Poison type Pokemon.
You find Grimer in the Fiery Path. They are rare is it may seem that they are not there but they are. Its worth the time getting Grimer then evolving it to Muk, because Muk is probably one of the stronger Poison type Pokemon that are in Emerald!
Yes, Grimer can be caught in Pokemon Fire Red.
Grimer does not have a pre-evolution. The Pokemon before Grimer in the PokeDex is Dewgong, evolution of Seel.
grimer is in route 212
For Grimer to evolve, get him to level 38.
No.
In your heart
Grimer evolves into Muk at level 38.
fire cave
It is grimer
Kinda