Context and question: Predators may increase the biodiversity of communities by preventing a single species from becoming dominant. Such predators are known as keystone species and may have a profound influence on the balance of organisms in a particular ecosystem. Introduction or removal of this predator, or changes in its population density, can have drastic cascading effects on the equilibrium of many other populations in the ecosystem. For example, grazers of a grassland may prevent a single dominant species from taking over.
What are single species also known as?
Answer: unanswerable
Context and question: Frederick Lynch, the author of Invisible Victims: White Males and the Crisis of Affirmative Action, did a study on white males that said they were victims of reverse discrimination. Lynch explains that these white men felt frustrated and unfairly victimized by affirmative action. Shelby Steele, another author against affirmative action, wanted to see affirmative action go back to its original meaning of enforcing equal opportunity. He argued that blacks had to take full responsibility in their education and in maintaining a job. Steele believes that there is still a long way to go in America to reach our goals of eradicating discrimination.
 What moral position does Shelby Steele disagree with?
Answer: unanswerable
Context and question: In the field of music, Germany claims some of the most renowned classical composers of the world including Bach, Mozart and Beethoven, who marked the transition between the Classical and Romantic eras in Western classical music. Other composers of the Austro-German tradition who achieved international fame include Brahms, Wagner, Haydn, Schubert, Händel, Schumann, Liszt, Mendelssohn Bartholdy, Johann Strauss II, Bruckner, Mahler, Telemann, Richard Strauss, Schoenberg, Orff, and most recently, Henze, Lachenmann, and Stockhausen.
In what tradition of music did Brahms Wagner and Hadyn achieve fame?
Answer:
Austro-German