A person's blood type is based on the antigens found in the blood. These antigens, A and B are found on the surface of the blood cells and are uses as markers in the body. Type O blood does not have A or B antigens on the red blood cells, but contains both types in the plasma.
The Karst Plateau or the Karst region (Italian: Carso; Slovene: Kras), also simply known as the Karst, is a limestone plateau region extending across the border of southwestern Slovenia and northeastern Italy.he Karst Plateau or the Karst region (Italian: Carso; Slovene: Kras), also simply known as the Karst, is a limestone plateau region extending across the border of southwestern Slovenia and northeastern Italy.
Karst terrain has distinctive characteristics of relief and drainage arising from the solution of soluble bedrock by natural waters. Features of karst terrains may include a variety of sinkholes, solution valleys, underground rivers, caverns, disappearing streams, towers, and distinctive conical hills.Although most karst is developed in limestone (CaCO3) or dolomite (MgCaCO3) it also forms in soluble evaporite deposits.ubhumid and semiarid steppe and savanna grasslands: Little to no karst development. 1  Reasons: 2  Very low precipitation. 3  During hot dry seasons groundwater tends to move upward and deposit carbonate rather than dissolve it. ** 4 Limestone in arid regions forms ridges and cliffs rivaling sandstone in its stability.