Family expense disability policies shall also contain the following provisions:
(a) A provision that the policy and the application, if any, of the head of the family shall constitute the entire contract between the parties, and that all statements made by the head of the family shall, in the absence of fraud, be deemed representations and not warranties, and that no statement shall be used in defense to a claim under the policy, unless it is contained in a written application;
(b) A provision that to the family originally insured may be added from time to time all new members of the family eligible for insurance in such family; and that the head of the family shall give the insurer notice of the addition to the family of any person eligible for coverage under the policy.