Pal Park or route 205 rare
Growlithe, Staryu, Oddish, Pichu
You could trade with somebody who has it, or use an action replay, but beyond that there aren't any other ways to get Elekid.
you can use the fire stone on vulpix,growlithe,evee,and other Pokemon
Charizard, charmeleon, charmander, ditto sort of counts cause it can switch into other pokemon, flareon, and growlithe.
You have to get to 4 island, and then get growlithe and ponyta of opposite genders, and put them in the daycare. If ponyta is female, then the egg will hatch into a ponyta. If the growlithe is female, then the egg will hatch into growlithe. If either Pokemon can learn a move their dad learns, they will know it when they hatch from the egg.
i think so
Yes you can get other Pokemon that arent in pearl.
impossible unless if you trade it form Pokemon leafgreen or other related Pokemon games (except DS Pokemon games) . in other words it is a Pokemon version exclusive Pokemon like growlithe (firered) and vulpix (leafgreen)
Pokemon crater
In Pokémon FireRed, Arcanine evolves from Growlithe when it is exposed to a Fire Stone. Growlithe does not evolve through leveling up or other methods; the Fire Stone is the only way to trigger its evolution. Be sure to have a Fire Stone in your inventory when you want to evolve your Growlithe into Arcanine.
You can't, it's not natural to Pokemon Sapphire. You have to trade Growlithe in from either PokemonFireRed or PokemonLeafGreen after you've completed the Pokemon challenge on both games. *Note: I found a glitch in my Pokemon Sapphire that will allow me to trade with other games (outside the same poke. region) but it totally screwed up my pokedex. It's not supposed to happen so I don't know if I just got lucky. Hope this helps.
Unfortunately you can't. To get it you have to trade someone who has one. In Fire Red for example.