(1) At a meeting of a committee, the following person presides:
(a) if there is a chairperson and he or she is present, the chairperson; or
(b) if there is no chairperson, or there is a chairperson but he or she is not present, a member chosen by the members present to be chairperson of the meeting.
(2) The chosen person may exercise all the powers, duties, and functions of the chairperson for the purposes of the meeting.