Jane Goodall observed chimpanzees fighting and killing each other. Which of the following methodologies would be most useful in telling us what caused the chimpanzees' behavior?

The Pew Survey that followed the Michael Brown incident demonstrated that Americans were ______ about whether Mr. Brown’s death reflected important issues about the state of race in America.

a. deeply divided b. indifferent c. highly unified d. moderately concerned

Aaron joined the Zionist movement in the 1930s. Which of the following world events most closely met the goals of his movement?

a. the Japanese attack on Pearl Harbor in 1941 b. the admission of Israel to the UN in 1949 c. the fall of Saigon in 1975 d. the opening of the Berlin Wall in 1989