A union recognition clause does all of the following except Multiple Choice state whether the bargaining unit will be a union shop or an agency shop. define the bargaining unit. help unions maintain their strength. state that the employer recognizes the union as the exclusive bargaining agent for the bargaining unit.A union recognition clause does all of the following except Multiple Choice state whether the bargaining unit will be a union shop or an agency shop. define the bargaining unit. help unions maintain their strength. state that the employer recognizes the union as the exclusive bargaining agent for the bargaining unit