Problem: Please answer a question about the following article about On the Origin of Species:
Chapter IX deals with the fact that the geologic record appears to show forms of life suddenly arising, without the innumerable transitional fossils expected from gradual changes. Darwin borrowed Charles Lyell's argument in Principles of Geology that the record is extremely imperfect as fossilisation is a very rare occurrence, spread over vast periods of time; since few areas had been geologically explored, there could only be fragmentary knowledge of geological formations, and fossil collections were very poor. Evolved local varieties which migrated into a wider area would seem to be the sudden appearance of a new species. Darwin did not expect to be able to reconstruct evolutionary history, but continuing discoveries gave him well founded hope that new finds would occasionally reveal transitional forms. To show that there had been enough time for natural selection to work slowly, he again cited Principles of Geology and other observations based on sedimentation and erosion, including an estimate that erosion of The Weald had taken 300 million years. The initial appearance of entire groups of well developed organisms in the oldest fossil-bearing layers, now known as the Cambrian explosion, posed a problem. Darwin had no doubt that earlier seas had swarmed with living creatures, but stated that he had no satisfactory explanation for the lack of fossils. Fossil evidence of pre-Cambrian life has since been found, extending the history of life back for billions of years.
What is the name of the group of well-developed organisms that were discovered within fossil-bearing layers?
A: the Cambrian explosion
Problem: Please answer a question about the following article about Circadian rhythm:
Studies by Nathaniel Kleitman in 1938 and by Derk-Jan Dijk and Charles Czeisler in the 1990s put human subjects on enforced 28-hour sleep–wake cycles, in constant dim light and with other time cues suppressed, for over a month. Because normal people cannot entrain to a 28-hour day in dim light if at all,[citation needed] this is referred to as a forced desynchrony protocol. Sleep and wake episodes are uncoupled from the endogenous circadian period of about 24.18 hours and researchers are allowed to assess the effects of circadian phase on aspects of sleep and wakefulness including sleep latency and other functions.[page needed]
What is this forced type of study called?
A: forced desynchrony
Problem: Please answer a question about the following article about Dominican Order:
Dominic's education at Palencia gave him the knowledge he needed to overcome the Manicheans. With charity, the other concept that most defines the work and spirituality of the order, study became the method most used by the Dominicans in working to defend the Church against the perils that hounded it, and also of enlarging its authority over larger areas of the known world. In Dominic's thinking, it was impossible for men to preach what they did not or could not understand. When the brethren left Prouille, then, to begin their apostolic work, Dominic sent Matthew of Paris to establish a school near the University of Paris. This was the first of many Dominican schools established by the brethren, some near large universities throughout Europe.
Dominic's education helped him to overcome who?
A: the Manicheans
Problem: Please answer a question about the following article about Architecture:
When modern architecture was first practiced, it was an avant-garde movement with moral, philosophical, and aesthetic underpinnings. Immediately after World War I, pioneering modernist architects sought to develop a completely new style appropriate for a new post-war social and economic order, focused on meeting the needs of the middle and working classes. They rejected the architectural practice of the academic refinement of historical styles which served the rapidly declining aristocratic order. The approach of the Modernist architects was to reduce buildings to pure forms, removing historical references and ornament in favor of functionalist details. Buildings displayed their functional and structural elements, exposing steel beams and concrete surfaces instead of hiding them behind decorative forms.
What kind of movement was modern architecture in the beginning?
A:
avant-garde movement