Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
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Результати 1-5 із 98
Сторінка 1
... Species . " Natural selec- tion , " he said , has no relation whatever to the primary cause of any modification of structure . ” ' 66 Darwin certainly investigated the problems of inheritance and variation , and added largely to our ...
... Species . " Natural selec- tion , " he said , has no relation whatever to the primary cause of any modification of structure . ” ' 66 Darwin certainly investigated the problems of inheritance and variation , and added largely to our ...
Сторінка 2
... Species . In this book he has a chapter on the laws of variation , in which he says that our ignor- ance of them is profound . He makes no attempt to explain them ; nor does he propose any hypo- thesis of the origin of variations . On ...
... Species . In this book he has a chapter on the laws of variation , in which he says that our ignor- ance of them is profound . He makes no attempt to explain them ; nor does he propose any hypo- thesis of the origin of variations . On ...
Сторінка 4
... of action of natural selection ; and 1 Origin of Species , 5th ed . ( 1869 ) , p . 104 ; and Life and Letters , iii . , pp . 107-108 . so soon as that mistake was seen the difficulty vanished 4 Darwinism and Lamarckism.
... of action of natural selection ; and 1 Origin of Species , 5th ed . ( 1869 ) , p . 104 ; and Life and Letters , iii . , pp . 107-108 . so soon as that mistake was seen the difficulty vanished 4 Darwinism and Lamarckism.
Сторінка 14
... species . There may be special cases , in which the 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 ...
... species . There may be special cases , in which the 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 ...
Сторінка 15
... species are not founded on physiological charac- ters ; and , therefore , no amount of physiological selection could give rise to a new species ; it can at most only produce isolation of some individuals from others . The best case of ...
... species are not founded on physiological charac- ters ; and , therefore , no amount of physiological selection could give rise to a new species ; it can at most only produce isolation of some individuals from others . The best case of ...
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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 selection adapted Ampelopsis animals and plants arise artificial selection become biology birds brought called cause cells colour compensation of growth congenital consequently Darwin definite variation despotism direct action divergent evolution doubt elongated environment evidence existence explain external conditions extrinsic selection facts favour flatfish flowers G. H. Lewes gemmules genera genus germ-cells groups Henslow Herbert Spencer hypothesis idea important indefinite infertility inherited insects island kinetogenesis Lamarck Lamarckians large number living means mental variations modification Moritz Wagner movements nation natural selection naturalists Neo-Lamarckians notochord number of individuals offspring opinion organic evolution organisation Origin of Species Pangenesis physical Physiogenesis plants and animals principle of compensation principle of selection produced Professor progress Radiolarians reason result says science of history seems sterility structure suppose take place theory tion transmission transmitted tribe use-inheritance varieties vertebræ Weismann Zealand