Unfortunately, no one knows exactly what causes Crohn's, just that something in your body causes your immune system to overreact. Various stimuli may trigger Crohn's disease, affecting individuals differently. For instance, it might be a kind of bacteria, something in your own intestines, or even your family history.
ACCUPLACERÂ® is a suite of computerized tests that determines your knowledge in math, reading and writing as you prepare to enroll in college-level courses.
Â© 2012 The College Board. ACCUPLACER SAMPLE QUESTIONS8 Arithmetic This test measures your ability to perform basic arithmetic operations and to solve problems that involve fundamental arithmetic concepts. There are 17 questions on the Arithmetic tests, divided into three types.