Which two recognized breeds were instrumental in developing the Mountain Feist according to the text?
Answer
Rat Terrier and Teddy Roosevelt Terrier
Feists proved so effective in their historical roles that they were instrumental in the development of other recognized breeds, specifically mentioning the Rat Terrier and the Teddy Roosevelt Terrier.

Related Questions
Is the Mountain Feist recognized by the American Kennel Club (AKC)?Which immigrant groups are credited with bringing the ancestral hounds and terriers that led to the Feist dogs?What were the three primary utility jobs for early Feist dogs on farms and ranches?What is the likely derivation of the name "feist"?What specific hunting technique defines the Feist's specialization with small quarry?Which two recognized breeds were instrumental in developing the Mountain Feist according to the text?In what year did the United Kennel Club (UKC) officially recognize the Mountain Feist as a distinct breed?According to the text, what is the typical weight range for a Mountain Feist?Which ear condition is explicitly stated as an eliminating fault in a UKC conformation event for the Mountain Feist?How are Mountain Feists generally described regarding their behavior while tracking quarry?