Under the presidency and high council of each stake, are one or more patriarchs, whose ministry, so far as blessings are concerned, is similar to that of the presiding patriarch. They minister, however, only in their own stakes. Each stake has a quorum of high priests, indefinite in number, presided over by three of its members. The high priesthood holds the inherent right of presidency, and it is from the high priests that presidencies are selected, such as the First Presidency, the council of the twelve, a stake presidency, or a bishopric. While the seventies, as an entire body, are presided over by their first council, they are divided into quorums of seventy, each quorum having seven presidents of its own. The special duty of the seventies is to assist the apostles in preaching the gospel, and they labor under the direction of the twelve. Unlike the high priests, elders, and lesser priesthood, the seventies are independent of the jurisdiction of the stake presidency, as quorums, though not as individual members. They are the "minute men" of the Church, subject to sudden calls into the mission field. A stake has one or more quorums of elders, each composed of ninety-six members, three of whom preside. Each ward should have one or more quorums of priests (forty-eight), teachers (twenty-four), and deacons (twelve), each with a presidency of three. A ward bishopric presides in a general way over all the quorums of the Aaronic Priesthood in the ward, and over all Church members, as individuals, residing therein. The bishop of the ward is ex-officio president of the priests' quorum.