Unless the certificate of incorporation or bylaws provide otherwise, a meeting of the stockholders shall be conducted as follows:
(a) At each meeting of stockholders, a chair shall preside. The chair shall be appointed by the board of directors.
(b) The board of directors shall determine the order of business and shall have the authority to establish rules for the conduct of the meeting.
(c) The chair of the meeting shall announce at the meeting when the polls close for each matter voted upon. If no announcement is made, the polls shall be deemed to have closed upon the final adjournment of the meeting. After the polls close, no ballots, proxies or votes nor any revocations or changes to ballots, proxies or votes may be accepted.