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.
Real Madrid and Barcelona will play in the El Clasico soccer rivalry in Week 28 of the La Liga season. Lionel Messi and Cristiano Ronaldo highlight this epic game, but there are some things you may not know about Real Madrid and Barcelona's history of games over the years including logos, war and politics.eal Madrid and Barcelona faced each other for the first time at the 1916 Copa del Rey. Barcelona won the match 2-1 on March 26 in Barcelona, Spain. In their fourth game of that competition, Real Madrid won with a controversial no-offside call that resulted in a goal. Fans reacted by throwing rocks at Madrid players.