TB infection begins when the mycobacteria reach the pulmonary alveoli, where they invade and replicate within endosomes of alveolar macrophages. Macrophages identify the bacterium as foreign and attempt to eliminate it by phagocytosis. During this process, the bacterium is enveloped by the macrophage and stored temporarily in a membrane-bound vesicle called a phagosome. The phagosome then combines with a lysosome to create a phagolysosome. In the phagolysosome, the cell attempts to use reactive oxygen species and acid to kill the bacterium. However, M. tuberculosis has a thick, waxy mycolic acid capsule that protects it from these toxic substances. M. tuberculosis is able to reproduce inside the macrophage and will eventually kill the immune cell.
What's the process by which macrophages try to get rid of the TB bacterium?
phagocytosis

In August 2012, the AFL announced a new project into China, known as the China American Football League. The CAFL project is headed up by ESPN NFL analyst and Philadelphia Soul majority owner president Ron Jaworski. The plans were to establish a six-team league that would play a 10-week schedule that was slated to start in October 2014. The AFL coaches and trainers will travel to China to help teach the rules of the sport to squads made up of Chinese and American players with the goal of starting an official Chinese arena league. Ganlan Media International were given exclusive rights to the new Chinese league.
What television network does Ron Jaworski work for?
ESPN

Washington University has over 300 undergraduate student organizations on campus. Most are funded by the Washington University Student Union, which has a $2 million plus annual budget that is completely student-controlled and is one of the largest student government budgets in the country. Known as SU for short, the Student Union sponsors large-scale campus programs including WILD (a semesterly concert in the quad) and free copies of the New York Times, USA Today, and the St. Louis Post-Dispatch through The Collegiate Readership Program; it also contributes to the Assembly Series, a weekly lecture series produced by the University, and funds the campus television station, WUTV, and the radio station, KWUR. KWUR was named best radio station in St. Louis of 2003 by the Riverfront Times despite the fact that its signal reaches only a few blocks beyond the boundaries of the campus. There are 11 fraternities and 9 sororities, with approximately 35% of the student body being involved in Greek life. The Congress of the South 40 (CS40) is a Residential Life and Events Programming Board, which operates outside of the SU sphere. CS40's funding comes from the Housing Activities Fee of each student living on the South 40.
How many fraternities are located at Washington University?
11