All counties cooperating with the state agricultural extension service operated by the University of Tennessee must have an agricultural extension committee.  This committee consists of seven people elected by the county legislative body.  Three members must be members of the county legislative body and four members must not be members of the county legislative body.  Of these four members, two must be farmers and two must be farm women, residing in different civil districts.  The members are elected for terms of two years, but one farmer and one farm woman is elected in even-numbered years and the balance elected in odd- numbered years.  No member may be elected to more than three consecutive terms. The committee works with the U.T. agricultural extension representative in formulating the county extension budget for presentation to the county legislative body and serves in an advisory capacity on activities regarding the extension program in the county. T.C.A. § 49-50-104.