The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for Life: Reprinted from the Sixth London Edition, with All Additions and CorrectionsA. L. Burt Company, 1890 - 458ÆäÀÌÁö |
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... slight in internal parts or organs . Man can hardly select , or only with much difficulty , any deviation of ... slight degree by nature . No man would ever try to make a fantail till he saw a pigeon with a tail developed in some slight ...
... slight in internal parts or organs . Man can hardly select , or only with much difficulty , any deviation of ... slight degree by nature . No man would ever try to make a fantail till he saw a pigeon with a tail developed in some slight ...
174 ÆäÀÌÁö
... slight alteration in the transparent layers ; and carefully preserving each which , under varied circumstances , in any way or degree , tends to produce a distincter image . We must suppose each new state of the instrument to be ...
... slight alteration in the transparent layers ; and carefully preserving each which , under varied circumstances , in any way or degree , tends to produce a distincter image . We must suppose each new state of the instrument to be ...
244 ÆäÀÌÁö
... slight modifications of instinct might be profitable to a species ; and if it can be shown that instincts do vary ... slight deviations of bodily structure . But No complex instinct can possibly be produced through natural selection ...
... slight modifications of instinct might be profitable to a species ; and if it can be shown that instincts do vary ... slight deviations of bodily structure . But No complex instinct can possibly be produced through natural selection ...
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The Origin of Species by Means of Natural Selection: Or, The ..., 1-2±Ç Charles Darwin ªÀº ¹ßÃé¹® º¸±â - 1890 |
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adapted admit affinities ALEXANDRE DUMAS allied species America ancient appear beak become bees believe belonging birds breeds cause cells characters climate closely allied color continued crossed crustaceans degree developed difficulty distinct species domestic doubt effects eggs embryo existing extinct extremely facts favorable females fertility flowers formation forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate intervals kind lamell©¡ larv©¡ less living male mammals manner marsupials migration modified descendants natural selection naturalists nearly nest oceanic islands offspring organs paleozoic parent peculiar perfect pigeons pistil pollen present principle probably produced quadrupeds ranked remarked resemblance rudimentary seeds Silurian SIR WALTER SCOTT slight South America stamens sterility structure successive suppose tend theory tion trees variability variations varieties vary whole widely different wings young