Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
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Сторінка 11
... growth which counteracts the law of heredity . Each of these causes may possibly give rise to indefinite or to definite varia- tion , according to the strength with which it acts . We have no reason to suppose that exter- nal causes ...
... growth which counteracts the law of heredity . Each of these causes may possibly give rise to indefinite or to definite varia- tion , according to the strength with which it acts . We have no reason to suppose that exter- nal causes ...
Сторінка 79
... growth of the gemmules is due to the action of some external cause ; and , therefore , that varia- tion ought to show some sort of relation to changed circumstances ; which can hardly be said to be the case . Still , this is conceivable ...
... growth of the gemmules is due to the action of some external cause ; and , therefore , that varia- tion ought to show some sort of relation to changed circumstances ; which can hardly be said to be the case . Still , this is conceivable ...
Сторінка 88
... growth . The fundamental difference between Lamarckism and Darwinism lies in this - that for the former it is necessary that post - natal variations should be capable of transmission to the next generation , while to the latter such ...
... growth . The fundamental difference between Lamarckism and Darwinism lies in this - that for the former it is necessary that post - natal variations should be capable of transmission to the next generation , while to the latter such ...
Сторінка 89
... growth . That is , he thought that they might be necessarily connected with other characters which are of use . No doubt the first explanation will account for the presence of useless rudimentary organs or vestiges , but they are ...
... growth . That is , he thought that they might be necessarily connected with other characters which are of use . No doubt the first explanation will account for the presence of useless rudimentary organs or vestiges , but they are ...
Сторінка 165
... growth , structure , and function , like those of an individual body ' ; and in development both pass through changes which are not permanent . The governing or controlling power is supposed to represent the nervous sys- tem ; the ...
... growth , structure , and function , like those of an individual body ' ; and in development both pass through changes which are not permanent . The governing or controlling power is supposed to represent the nervous sys- tem ; the ...
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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