The officers of a cooperative shall consist of a president, vice-president, secretary, and treasurer, who shall be elected annually by and from the board of directors. When If a14 person holding any such offices who is an officer ceases to be a director he shall cease to hold such office, the person is no longer an officer. The same person may hold the offices of secretary16 and of treasurer may be held by the same person. The board of directors may also elect or17 appoint such any other officers, agents, or employees as it deems necessary or advisable, and18 shall prescribe their the powers and duties of those officers, agents, or employees. Any officer19 may be removed from office and his and the successor in office elected in the manner prescribed20 in the bylaws.21