The new head hypothesis revisited
WebJul 7, 2005 · The New Head Hypothesis comprised four claims: (1) neural crest, neurogenic placodes, and muscularized hypomere are unique to vertebrates, (2) the structures … WebReport this post Report Report. Back Submit
The new head hypothesis revisited
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WebSep 1, 2000 · The “Sojourner Hypothesis” Revisited. The concept of “The Sojourner” is a very important and influential one in the study of early Chinese immigration to America and of Chinese Americans. The sojourner concept originated from Paul Siu’s widely-cited article “The Sojourner,” published in American Journal of Sociology in 1952, which ... WebMay 12, 2015 · Although comparable fate maps of amphibians produced over several decades have failed to document a neural crest derivation of ventromedial elements in these vertebrates, a recent report provides evidence of a mesodermal origin of one of these elements, basibranchial 2, in the axolotl.
WebJul 7, 2005 · The New Head Hypothesis comprised four claims: (1) neural crest, neurogenic placodes, and muscularized hypomere are unique to vertebrates, (2) the structures … WebDec 10, 2024 · In one way, the new hypothesis is formulated based on the testing of the original compensation hypothesis, done by scholars in several disciplines. An important difference between the two versions is that the original compensation hypotheses portrayed economic openness as the root cause of something problematic – volatility – that needed …
WebMar 30, 2024 · This new head may have allowed for the adoption of a predatory lifestyle, increase in body size and the conquering of new habitats characteristic of this clade [24]. … WebOct 26, 2024 · The widely accepted “new head hypothesis” holds that all of these body parts derive from a particular type of embryonic structure located in the ectoderm, or outermost layer of an embryo. ... “We revisited very old observations with cutting-edge technology that proves this idea that there is an endodermal contribution to the pituitary ...
WebSep 15, 2006 · Butler proposed a "Serial Transformation" hypothesis in 2000, which disputed the latter idea in that paired eyes and an enlarged brain (but lacking telencephalon) were …
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