QUES: Biodiversity provides critical support for drug discovery and the availability of medicinal resources. A significant proportion of drugs are derived, directly or indirectly, from biological sources: at least 50% of the pharmaceutical compounds on the US market are derived from plants, animals, and micro-organisms, while about 80% of the world population depends on medicines from nature (used in either modern or traditional medical practice) for primary healthcare. Only a tiny fraction of wild species has been investigated for medical potential. Biodiversity has been critical to advances throughout the field of bionics. Evidence from market analysis and biodiversity science indicates that the decline in output from the pharmaceutical sector since the mid-1980s can be attributed to a move away from natural product exploration ("bioprospecting") in favor of genomics and synthetic chemistry, indeed claims about the value of undiscovered pharmaceuticals may not provide enough incentive for companies in free markets to search for them because of the high cost of development; meanwhile, natural products have a long history of supporting significant economic and health innovation. Marine ecosystems are particularly important, although inappropriate bioprospecting can increase biodiversity loss, as well as violating the laws of the communities and states from which the resources are taken.

What provides critical support for drug discovery and the availability of economic resources?
What is the answer?
ANS: unanswerable
QUES: In the 1940s, new interpretations of John's reign began to emerge, based on research into the record evidence of his reign, such as pipe rolls, charters, court documents and similar primary records. Notably, an essay by Vivian Galbraith in 1945 proposed a "new approach" to understanding the ruler. The use of recorded evidence was combined with an increased scepticism about two of the most colourful chroniclers of John's reign, Roger of Wendover and Matthew Paris. In many cases the detail provided by these chroniclers, both writing after John's death, was challenged by modern historians. Interpretations of Magna Carta and the role of the rebel barons in 1215 have been significantly revised: although the charter's symbolic, constitutional value for later generations is unquestionable, in the context of John's reign most historians now consider it a failed peace agreement between "partisan" factions. There has been increasing debate about the nature of John's Irish policies. Specialists in Irish medieval history, such as Sean Duffy, have challenged the conventional narrative established by Lewis Warren, suggesting that Ireland was less stable by 1216 than was previously supposed.

Who wrote an essay in 1945 that proposed a "new approach?"
What is the answer?
ANS: Vivian Galbraith
QUES: The last three years of Eisenhower's second term in office were ones of relatively good health. Eventually after leaving the White House, he suffered several additional and ultimately crippling heart attacks. A severe heart attack in August 1965 largely ended his participation in public affairs. In August 1966 he began to show symptoms of cholecystitis, for which he underwent surgery on December 12, 1966, when his gallbladder was removed, containing 16 gallstones. After Eisenhower's death in 1969 (see below), an autopsy unexpectedly revealed an adrenal pheochromocytoma, a benign adrenaline-secreting tumor that may have made the President more vulnerable to heart disease. Eisenhower suffered seven heart attacks in total from 1955 until his death.

What did Eisenhower have removed via surgery on December 12, 1966?
What is the answer?
ANS:
gallbladder