Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
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Сторінка 10
... Here we have cases of indefinite changing into definite variation , showing that the two are funda- mentally the same ; the difference between them lying in the strength and constancy of the direct- ing IO Darwinism and Lamarckism.
... Here we have cases of indefinite changing into definite variation , showing that the two are funda- mentally the same ; the difference between them lying in the strength and constancy of the direct- ing IO Darwinism and Lamarckism.
Сторінка 11
Four Lectures Frederick Wollaston Hutton. lying in the strength and constancy of the direct- ing cause . Variations must be due either , ( 1 ) to the action of the environment directly on the individuals , or indirectly , by causing a ...
Four Lectures Frederick Wollaston Hutton. lying in the strength and constancy of the direct- ing cause . Variations must be due either , ( 1 ) to the action of the environment directly on the individuals , or indirectly , by causing a ...
Сторінка 14
... direct action of external agencies has been the prominent factor in the formation of a new species ; but certainly the failure of natural selection to explain all the phenomena of evolu- tion does not oblige us to believe in Lamarckism ...
... direct action of external agencies has been the prominent factor in the formation of a new species ; but certainly the failure of natural selection to explain all the phenomena of evolu- tion does not oblige us to believe in Lamarckism ...
Сторінка 31
... direct proof of the proposition could be obtained , but it was assumed that perfect fertility among the individ- uals , and such a close resemblance as might exist between parent and offspring , were sufficient to prove community of ...
... direct proof of the proposition could be obtained , but it was assumed that perfect fertility among the individ- uals , and such a close resemblance as might exist between parent and offspring , were sufficient to prove community of ...
Сторінка 45
... direct evidence of one species changing into another , but that I believe that this view in the main is correct , because so many phenomena can be thus grouped together and explained . But it is generally of no use ; I cannot make ...
... direct evidence of one species changing into another , but that I believe that this view in the main is correct , because so many phenomena can be thus grouped together and explained . But it is generally of no use ; I cannot make ...
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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