The A blood type has only the A antigen and the B blood type has only the B antigen. The AB blood type has both A and B antigens, and the O blood type has neither A nor B antigen. By the time you are six months old, you naturally develop antibodies against the antigens your red blood cells lack.
Spain's football league is extremely competive and features many of the world's best players. While Real Madrid and FC Barcelona have run the show for much of La Liga's history, in recent years they have been met with top-notch competition from teams such as the Deportivo de La CoruÃ±a and Valencia CF. La Liga: Season-long tournament between the teams of Spain's top football division.
For other football teams called Arsenal, see Arsenal (disambiguation) Â§ Football. Arsenal Football Club is a professional football club based in Highbury, London, that plays in the Premier League, the top flight of English football. The club has won 13 League titles, 12 FA Cups (a joint record), two League Cups, 14 FA Community Shields, one UEFA Cup Winners' Cup and one Inter-Cities Fairs Cup.