What is the difference between a bank and a bank and trust?

Apple River State Bank 13 Bank of Fayette County 5 BANK OF THE ORIENT 9 Citizens National Bank of Park Rapids 2 Fairfax State Savings Bank 2 Farmers & Merchants Bank of South Carolina 2 First Midwest Bank of Dexter 10 First National Bank of Arenzville 4 First National Bank of Carmi 4 First National Bank of Osakis 1 First Security Bank & Trust 2 Heritage Bank Minnesota 2 LENDINGCLUB Bank National Association 24 MORTON Community Bank 10 Portage Community Bank 5 PrimeBank of Texas 3 Texas Republic Bank, National Association 5 Unison Bank 15 University Bank 8 WNB Financial, National Association 7