A corporation may provide in its bylaws for delegates having some or all of the authority of members. Where delegates are provided for, the bylaws shall set forth the delegates’ terms of office, any reasonable method for delegates’ selection and removal, and any reasonable method for calling, noticing and holding meetings of delegates. Unless delegates are directly elected by the membership, they shall be elected by a body or bodies directly elected by the membership. Delegates may only act personally at a meeting or by written ballot but may not act by proxy. Delegates may be given a name other than “delegates.”