(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 man in the world is Carlos Slim HelÃº (and family) of Mexico. He is worth 53.5 billion dollars. Rounding out the top three richest men in the world are Bill Gates ($53.0 billion) and Warren Buffet ($47.0 billion). ChaCha! According to Forbes Magazine, Warren Buffett is the world's richest person.