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The alternatives in question do not deny that evolutionary changes over time are the origin of the diversity of life, nor that the organisms alive today share a common ancestor from the distant past (or ancestors, in some proposals); rather, they propose alternative mechanisms of evolutionary change over time, arguing against mutations acted on ...
These ideas derived from pre-scientific concepts of heredity ("hereditary taint") with Lamarckian emphasis on biological development through purpose and habit. Degeneration concepts were often associated with authoritarian political attitudes, including militarism and scientific racism , and a preoccupation with eugenics .
Evolutionary thought, the recognition that species change over time and the perceived understanding of how such processes work, has roots in antiquity. With the beginnings of modern biological taxonomy in the late 17th century, two opposed ideas influenced Western biological thinking: essentialism, the belief that every species has essential characteristics that are unalterable, a concept ...
These changes in the second species then, in turn, cause new adaptations in the first species. This cycle of selection and response is called coevolution. [ 192 ] An example is the production of tetrodotoxin in the rough-skinned newt and the evolution of tetrodotoxin resistance in its predator, the common garter snake .
In the text this branching tree idea is tentatively applied to the history of life on earth: "there may be branching". [12] In 1858, a year before Darwin's Origin, the paleontologist Heinrich Georg Bronn (1800–1862) published a hypothetical tree labelled with letters. [13] Although not a creationist, Bronn did not propose a mechanism of ...
Aristotle's word aitia (αἰτία) has, in philosophical scholarly tradition, been translated as 'cause'. This peculiar, specialized, technical, usage of the word 'cause' is not that of everyday English language. [4] Rather, the translation of Aristotle's αἰτία that is nearest to current ordinary language is "explanation." [5] [2] [4]
'The Idea of You' Changes the Book’s Abrupt Ending Amazon Prime. ... The 15 Best Organic And Clean Shampoos For Any And All Hair Types. 100 Gifts That Are $50 Or Under (And Look Way More ...
Béchamp strongly contested Pasteur's view, proposing a competing idea known as the pleomorphic theory of disease. This theory says that all life is based on forms that a certain class of organisms take during stages of their life cycles and that germs are attracted to the environment of diseased tissue rather than being the cause of it. [6]