Other institutions of higher education established by law having authority to grant baccalaureate degrees shall each be governed by a board of control which shall be a body corporate. The board shall have general supervision of the institution and the control and direction of all expenditures from the institution's funds. It shall, as often as necessary, elect a president of the institution under its supervision. He shall be the principal executive officer of the institution and be ex-officio a member of the board without the right to vote. The board may elect one of its members or may designate the president, to preside at board meetings. Each board of control shall consist of eight members who shall hold office for terms of eight years, not more than two of which shall expire in the same year, and who shall be appointed by the governor by and with the advice and consent of the senate. Vacancies shall be filled in like manner.