(If there are no antigens at all on the surface of the red blood cells, all three possible antibodies are present in the blood plasma: A, B and Rh antibodies.). The blood type notation O Rh-indicates which antigens and antibodies are present in the blood.
There were 2,473 billionaires in the world, as of Wealth-Xâs last count through 2015. That was a 6.4 percent increase in billionaires from the year before. But who these billionaires are and what theyâre like is more difficult to discern.
The Richest Countries In The World. Qatar ($124,927 GDP per capita), Luxembourg ($109,192 GDP per capita), Singapore ($90,531 per capita), and Brunei ($76,743 per capita) top the list of the world's richest countries.