Passage 12Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it...
Passage 11Federal efforts to aid minority businesses began in the 1960’s when the Small Business Administration (SBA) began making federally gua...
Passage 10 Caffeine, the stimulant in coffee, has been called the most widely used psychoactive substance on Earth .” Synder, Daly and Bruns hav...
Passage 9Most economists in the united States seem captivated by the spell of the free market. Consequently, nothing seems good or normal that does no...
Passage 8Virtually everything astronomers known about objects outside the solar system is based on the detection of photons-quanta of electromagnetic ...
Passage 7Between the eighth and eleventh centuries A.D., the Byzantine Empire staged an almost unparalleled economic and cultural revival, a recovery ...
Passage 6 In the eighteenth century, Japan’s feudal overlords, from the shogun to the humblest samurai, found themselves under financial stress....
Passage 5 How many really suffer as a result of labor market problems? This is one of the most critical yet contentious social policy questions. In ma...
Passage 4 The fossil remains of the first flying vertebrates, thepterosaurs, have intrigued paleontologists for more than two centuries. How such larg...
Passage 3 No very satisfactory account of the mechanism that caused the formation of the ocean basins has yet been given. The traditional view suppose...