Distinct molecules called agglutinogens (a type of antigen) are attached to the surface of red blood cells. There are two different types of agglutinogens, type A and type B. Each type has different properties.
MDB: Geodatabase. The geodatabase is a collection of geographic datasets of various types, with the most basic types being vector, raster, and tabular data. There are three types of geodatabases: file, personal, and ArcSDE. Geodatabases are the native data format for ESRI's ArcGIS.
ArcGIS Publisher is an extension to ArcGIS Desktop. Its installation files comes together with the ArcGIS Desktop software media and can be installed either together with the ArcGIS Desktop installation or later on. It is licensed separately which means you are supposed to obtain a license for it.