Hans Spemann and Hilde Mangold: Primary Embryonic Induction The most spectacular transplantation experiments were published by Hans Spemann and Hilde Mangold in 1924.* They showed that‚ of all the tissues in the early gastrula‚ only one has its fate determined. This self-differentiating tissue is the dorsal lip of the blastopore‚ the tissue derived from the gray crescent cytoplasm. When this dorsal lip tissue was transplanted into the presumptive belly skin region of another gastrula‚ it not only
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Elliot Vasquez 9/28-29/13 AP European History renaissance art essay Throughout European history art has changed in many ways. During medieval European history the art style was very unrealistic. The human body proportions were all wrong. Grown men and women were sized as children or midgets. The art style was also not very elegant due to the fact it was called the dark ages. During the Italian and upper European renaissance the art styles changed along with the rest
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Becca Barrett Period D AP World History DBQ Essay (Revised Version) September 3rd‚ 2009 From the 2nd century BCE through the 1st century CE‚ both the Han and Roman empires were dealing with the advancements in technology that come from being a sedentary civilization. There were many different attitudes between the two empires‚ but there were also differences in opinion within the empires themselves. In the Han Empire‚ some believed that technology was an essential part of an empire and requires
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music is timeless and will be always beloved and popular‚ but we shouldn’t forget that nowadays we have people‚ who are also very talented and whose works arouse deep and complex emotions. So‚ today I want to tell you about Hans Zimmer‚ German composer and modern genius. Hans Florian Zimmer (born September 12‚ 1957) is a German film composer and music producer. For nearly three decades Zimmer has composed music for over 100 films including some critically acclaimed film scores‚ such as The Lion
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AP World: Notes on the Early Modern World Who’s driving? Silver was a newly traded and highly valued item the world had not yet seen in depth. The Spanish and the Dutch had most of the silver‚ but because during this time period it was considered the accepted medium for trade goods‚ nearly all the silver ended up in China. Spain was dominant over Mexico and Peru so it naturally had much silver that put them in a role of power. Japan also claimed a hand in the silver market. Silver and
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When Buddhism was brought to Ancient China in 1st century C.E.‚ it progressively won converts after the fall of the Han Dynasty. Buddhism continued to influence China for centuries. The extent of Buddhism’s appeal can be traced throughout its existence in ancient China. Buddhism had distinct influence in ancient China. According to Buddha‚ life is ultimately suffering. Desire is the cause of suffering‚ when one rids themselves of desire‚ their suffering will be over. “The Fourth Noble Truth is
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1. Literacy critic Edward Said wrote that “the major contest in most modern cultures concerns the definition or interpretation of each culture.” To what extent do the case studies of this chapter support Said’s assertion? The studies of this chapter represent Said’s assertion in that they demonstrate most modern cultures in their typical conflicts with each other. One of the main reasons that groups have fought over time has been simply due to their inability to recognize that their differences
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DBQ Political‚ religious‚ and social factors affected the work of scientist in the sixteenth and seventeenth century in many ways. They were the reasons why natural philosophers questioned‚ studied‚ and continued to find new information in their discoveries. Developing a new scientific worldview must have required an abundance of controversy dealing with these important factors. There were people who believed that the discoveries made should not interfere with political power. *Thomas Hobbes
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Imperial Presidency: Overview In his book‚ The Imperial Presidency‚ Arthur Schlesinger recounts the rise of the presidency as it grew into the imperial‚ powerful position that it is today. His writing reflects a belief that the presidency is becoming too powerful and that very few people are making a real effort to stop it. He analyzes the back and forth struggle for power between Congress and the Presidency. Schlesinger breaks up the first half of the book chronologically. He begins by discussing
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HANS CHRISTIAN ANDERSON’S THE LITTLE MERMAID AND THE REPRESSED ELEMENTAL ANIMA RUNNING HEAD: LITTLE MERMAID‚ ELEMENTAL ANIMA David Johnston HANS CHRISTIAN ANDERSON’S THE LITTLE MERMAID AND THE REPRESSED ELEMENTAL ANIMA INTRODUCTION According to the wisdom of Marie Louise von Franz (1973)‚ a Jungian depth-psychological study of fairy tales begins with the initial exposition of all the characters. One examines the quality
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