Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
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Сторінка 19
... sometimes in opposi- tion , sometimes in conjunction , make the opera- tion of selection far more complicated than in biology , where sympathy is practically absent . It has been sometimes supposed that sympathy is opposed to selection ...
... sometimes in opposi- tion , sometimes in conjunction , make the opera- tion of selection far more complicated than in biology , where sympathy is practically absent . It has been sometimes supposed that sympathy is opposed to selection ...
Сторінка 20
... sometimes natural selection , but more often it is preferential selection ; for it is generally due to choice , voluntarily exercised , and is not an in- evitable necessity , nor is it always accompanied by the 20 Darwinism and Lamarckism.
... sometimes natural selection , but more often it is preferential selection ; for it is generally due to choice , voluntarily exercised , and is not an in- evitable necessity , nor is it always accompanied by the 20 Darwinism and Lamarckism.
Сторінка 72
... Sometimes , indeed , these latent char- acters may be abnormally developed ; as when an old hen assumes the plumage and spurs of a cock and begins to crow ; but usually they remain latent all through life . Indeed , ancestral char ...
... Sometimes , indeed , these latent char- acters may be abnormally developed ; as when an old hen assumes the plumage and spurs of a cock and begins to crow ; but usually they remain latent all through life . Indeed , ancestral char ...
Сторінка 74
... sometimes follow the same rule ; for example , the veronicas in New Zealand are among the most variable of plants , while the veronicas of Europe are remarkably stable . But more important still is the fact that the tendency to vary can ...
... sometimes follow the same rule ; for example , the veronicas in New Zealand are among the most variable of plants , while the veronicas of Europe are remarkably stable . But more important still is the fact that the tendency to vary can ...
Сторінка 84
... sometimes called , accept Darwin's teaching , and supplement the theory of natural selection with methods of iso- lation , which had been either overlooked or had not been brought into sufficient prominence by Mr. Darwin . Those ...
... sometimes called , accept Darwin's teaching , and supplement the theory of natural selection with methods of iso- lation , which had been either overlooked or had not been brought into sufficient prominence by Mr. Darwin . Those ...
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Darwinism and Lamarckism, Old and New: Four Lectures Frederick Wollaston Hutton Повний перегляд - 1899 |
Darwinism and Lamarckism, Old and New: Four Lectures Frederick Wollaston Hutton Повний перегляд - 1899 |
Darwinism and Lamarckism Old and New Frederick Wollaston Hutton Попередній перегляд недоступний - 2014 |
Загальні терміни та фрази
acquired characters action of external action of natural action of selection adapted animals and plants arise artificial selection become biology birds called cause cells Chatham Island colour congenital consequently Darwin definite variation despotism different species direct action divergent evolution domesticated doubt earth environment evidence explain external conditions extrinsic selection facts fancy pigeons favour fertile flatfish flowers gemmules genera genus germ-cells groups Herbert Spencer hypothesis idea important indefinite infertility inheritance insects island kinetogenesis Lamarck Lamarckians large number lecture living means mental variations modification Moritz Wagner natural selection naturalists Neo-Lamarckians North Island notochord number of individuals offspring opinion organic evolution organisation Origin of Species Pangenesis physical isolation physiological isolation plants and animals post-natal present principle of selection produced Professor progress Radiolarians reason recognition-marks says science of history structure struggle for existence suppose take place theory tion transmitted use-inheritance varieties vary vertebræ Zealand