in mt moon and the safari zone
you get them from Paris in the safari zone.
Growlithe is found in the Pokemon Mansion on Cinnabar Island in Pokemon Firered.
Celebi cannot be found in Pokemon FireRed. The only way to get Celebi in Pokemon FireRed is receiving it from an event distribution. These events are sadly no longer supported for Pokemon FireRed.
Yanma can't be found in Pokemon FireRed or Pokemon LeafGreen; it is strictly a fourth generation Pokemon.
Teddiursa can't be found on firered trade one from emerald to firered.
There is one King's Rock to be found in Pokemon FireRed in Sevault Canyon. They can also sometimes be found on wild Pokemon like Poliwhirl.
The electrolizer is not available in Pokemon FireRed. The electrolizer is only available in Pokemon Pearl, and can be found when an elekid is holding one.
Venonat can be found in the Safari Zone.
Bellsprout has to be found wild, in leafgreen, you need to trade from Leafgreen for Pokemon.
It can be found in CELADON CITY
To get Seel in Pokemon Emerald you must trade for one from Pokemon FireRed or LeafGreen. Seel can easily be found in the Seafoam Islands on Pokemon FireRed and LeafGreen.