Darwinism and Lamarckism, Old and New: Four LecturesDuckworth, 1899 - 169 стор. |
З цієї книги
Результати 1-5 із 21
Сторінка 13
... cells in a manner simi- lar to the action of mental variations on the brain - cells , which - although we cannot explain it - we know to be a fact by the phenomenon of memory . And , as something very similar to memory appears to be the ...
... cells in a manner simi- lar to the action of mental variations on the brain - cells , which - although we cannot explain it - we know to be a fact by the phenomenon of memory . And , as something very similar to memory appears to be the ...
Сторінка 69
... cells will develop quite differently , one forming the stem and fronds , the other the root . The root will perish altogether , but the fronds will produce spores , each one of which on germin- ation will produce a little plant , which ...
... cells will develop quite differently , one forming the stem and fronds , the other the root . The root will perish altogether , but the fronds will produce spores , each one of which on germin- ation will produce a little plant , which ...
Сторінка 70
... cell of an organism gives off minute detached particles , called gemmules , which are capable of multiplying by self - division . These gemmules circulate through the whole system , and are collected together into those cells whose ...
... cell of an organism gives off minute detached particles , called gemmules , which are capable of multiplying by self - division . These gemmules circulate through the whole system , and are collected together into those cells whose ...
Сторінка 78
... hypothesis of Pangenesis we might look upon variation as the occasional abnormal devel- opment of gemmules in two ways : either by gem- mules developing on other cells than their proper neighbour ; 78 Darwinism and Lamarckism.
... hypothesis of Pangenesis we might look upon variation as the occasional abnormal devel- opment of gemmules in two ways : either by gem- mules developing on other cells than their proper neighbour ; 78 Darwinism and Lamarckism.
Сторінка 79
Four Lectures Frederick Wollaston Hutton. mules developing on other cells than their proper neighbour ; or else that , although developing in the right place , they do not correctly reproduce the parent cell . In the first case we must ...
Four Lectures Frederick Wollaston Hutton. mules developing on other cells than their proper neighbour ; or else that , although developing in the right place , they do not correctly reproduce the parent cell . In the first case we must ...
Інші видання - Показати все
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