1. Meetings of the board of directors or trustees of any mutual life insurance corporation shall be upon such notice as the articles of agreement prescribe. Attendance of a director or trustee at any meeting constitutes a waiver of notice of such meeting, except when a director or trustee attends the meeting for the express purpose of objecting to the transaction of any business because the meeting is not lawfully called or convened. The notice or waiver of notice need not specify the business to be transacted at, nor the purpose of, any regular or special meeting of the board of directors or trustees.

2. If the articles of agreement of any mutual life insurance corporation so provide, the board of directors or trustees, by a resolution adopted by a majority of the whole board, may designate three or more of its number to constitute an executive committee, which committee shall, to the extent provided in the resolution or in the articles of agreement, have and exercise, during the interim between the meetings of the board, all of the authority of the board in the management of the corporation.

3. The designation of such committee shall not relieve the board, or any member thereof, of any responsibility imposed by law.