QUES: The elimination of wolves from Yellowstone National Park had profound impacts on the trophic pyramid. Without predation, herbivores began to over-graze many woody browse species, affecting the area's plant populations. In addition, wolves often kept animals from grazing in riparian areas, which protected beavers from having their food sources encroached upon. The removal of wolves had a direct effect on beaver populations, as their habitat became territory for grazing. Furthermore, predation keeps hydrological features such as creeks and streams in normal working order. Increased browsing on willows and conifers along Blacktail Creek due to a lack of predation caused channel incision because they helped slow the water down and hold the soil in place.
What changes happened when herbivores were eliminated in Yellowstone?

ANS: unanswerable

QUES: Tuberculosis caused the most widespread public concern in the 19th and early 20th centuries as an endemic disease of the urban poor. In 1815, one in four deaths in England was due to "consumption". By 1918, one in six deaths in France was still caused by TB. After TB was determined to be contagious, in the 1880s, it was put on a notifiable disease list in Britain; campaigns were started to stop people from spitting in public places, and the infected poor were "encouraged" to enter sanatoria that resembled prisons (the sanatoria for the middle and upper classes offered excellent care and constant medical attention). Whatever the (purported) benefits of the "fresh air" and labor in the sanatoria, even under the best conditions, 50% of those who entered died within five years (circa 1916).
What were the "treatment" facilities for poor people with TB in the early 1900s called?

ANS: sanatoria

QUES: As one of their first acts after end of the War of the Castilian Succession in 1479, Ferdinand and Isabella established the centrally organized and efficient Holy Brotherhood (Santa Hermandad) as a national police force. They adapted an existing brotherhood to the purpose of a general police acting under officials appointed by themselves, and endowed with great powers of summary jurisdiction even in capital cases. The original brotherhoods continued to serve as modest local police-units until their final suppression in 1835.
What war ended in 1479?

ANS: War of the Castilian Succession

QUES: Preceding the reform law, in August 1952, communist-led riots broke out at textile factories in Kafr el-Dawwar, leading to a clash with the army that left nine people dead. While most of the RCC insisted on executing the riot's two ringleaders, Nasser opposed this. Nonetheless, the sentences were carried out. The Muslim Brotherhood supported the RCC, and after Naguib's assumption of power, demanded four ministerial portfolios in the new cabinet. Nasser turned down their demands and instead hoped to co-opt the Brotherhood by giving two of its members, who were willing to serve officially as independents, minor ministerial posts.
How many people died in the textile factory riots?

ANS:
nine