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.
Supported raster dataset file formats. In ArcGIS, there are three ways to work with raster data: as a raster dataset, as a raster product, and as a raster type. A raster dataset defines how pixels are stored, such as the number of rows and columns, number of bands, actual pixel values, and other raster format-specific parameters.