Input: Read this: Migration in birds is highly labile and is believed to have developed independently in many avian lineages. While it is agreed that the behavioral and physiological adaptations necessary for migration are under genetic control, some authors have argued that no genetic change is necessary for migratory behavior to develop in a sedentary species because the genetic framework for migratory behavior exists in nearly all avian lineages. This explains the rapid appearance of migratory behavior after the most recent glacial maximum.
Question: What is highly labile?

Output: Migration in birds


QUES: An error sometimes made is the confusion of discussion regarding Greece’s Eurozone entry with the controversy regarding usage of derivatives’ deals with U.S. Banks by Greece and other Eurozone countries to artificially reduce their reported budget deficits. A currency swap arranged with Goldman Sachs allowed Greece to "hide" 2.8 billion Euros of debt, however, this affected deficit values after 2001 (when Greece had already been admitted into the Eurozone) and is not related to Greece’s Eurozone entry.

What error is sometimes made by tying Greece's Eurozone entry with?
What is the answer?
ANS: controversy regarding usage of derivatives’ deals


QUES: The slide rule was invented around 1620–1630, shortly after the publication of the concept of the logarithm. It is a hand-operated analog computer for doing multiplication and division. As slide rule development progressed, added scales provided reciprocals, squares and square roots, cubes and cube roots, as well as transcendental functions such as logarithms and exponentials, circular and hyperbolic trigonometry and other functions. Aviation is one of the few fields where slide rules are still in widespread use, particularly for solving time–distance problems in light aircraft. To save space and for ease of reading, these are typically circular devices rather than the classic linear slide rule shape. A popular example is the E6B.
What is the slide rule used for?

ANS: doing multiplication and division.


In England, one of the few licensed venues The Eclipse attracted people from up and down the country as it was open until the early hours. The Criminal Justice and Public Order Act 1994 was a government attempt to ban large rave dance events featuring music with "repetitive beats". There were a number of abortive "Kill the Bill" demonstrations. The Spiral Tribe at Castle Morten was probably the nail in the coffin for illegal raves, and forced through the bill, which became law, in November 1994. The music continued to grow and change, as typified by Leftfield with "Release the Pressure", which introduced dub and reggae into the house sound, although Leftfield had prior releases, such as "Not Forgotten" released in 1990 on Sheffield's Outer Rhythm records.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): Who recorded the hit single "Not Released"?
Ah, so.. unanswerable


Question: There are special rules for certain rare diseases ("orphan diseases") in several major drug regulatory territories. For example, diseases involving fewer than 200,000 patients in the United States, or larger populations in certain circumstances are subject to the Orphan Drug Act.  Because medical research and development of drugs to treat such diseases is financially disadvantageous, companies that do so are rewarded with tax reductions, fee waivers, and market exclusivity on that drug for a limited time (seven years), regardless of whether the drug is protected by patents.
Try to answer this question if possible: What is given to companies who develop drugs for "orphan diseases"?
Answer: tax reductions, fee waivers, and market exclusivity on that drug for a limited time (seven years), regardless of whether the drug is protected by patents


QUES: Hydrostatic gauges (such as the mercury column manometer) consist of a vertical column of liquid in a tube whose ends are exposed to different pressures. The column will rise or fall until its weight is in equilibrium with the pressure differential between the two ends of the tube. The simplest design is a closed-end U-shaped tube, one side of which is connected to the region of interest. Any fluid can be used, but mercury is preferred for its high density and low vapour pressure. Simple hydrostatic gauges can measure pressures ranging from 1 torr (100 Pa) to above atmospheric. An important variation is the McLeod gauge which isolates a known volume of vacuum and compresses it to multiply the height variation of the liquid column. The McLeod gauge can measure vacuums as high as 10−6 torr (0.1 mPa), which is the lowest direct measurement of pressure that is possible with current technology. Other vacuum gauges can measure lower pressures, but only indirectly by measurement of other pressure-controlled properties. These indirect measurements must be calibrated via a direct measurement, most commonly a McLeod gauge.
What is the level of mercury in the air calibrated by?

ANS:
unanswerable