 Variations neither useful nor injurious would not be affected by natural selection, and would be left either a fluctuating element, as perhaps we see in certain polymorphic species, or would ultimately become fixed, owing to the nature of the organism...  Evolution and Adaptation - Стр. 117авторы: Thomas Hunt Morgan - 1903 - Страниц: 470Полный просмотр - Подробнее о книге
 | Richard Holt Hutton, Walter Bagehot - 1860 - Страниц: 556
...preservation of favourable variations, and the rejection of injurious variations, I call Natural Selection. Variations neither useful nor injurious would not...be affected by natural selection, and would be left a fluctuating element, as perhaps we see in the species called polymorphic." Now by so much the more... | |
 | 1860 - Страниц: 564
...preservation of favourable variations, and the rejection of injurious variations, I call Natural Selection. Variations neither useful nor injurious would not...be affected by natural selection, and would be left a fluctuating clement, as perliaps we sec in the species called polymorphic." Now by so much the more... | |
 | 1861 - Страниц: 824
...preservation of favorable variations and the rejection of injurious variations, I call Natural Selection. Variations neither useful nor injurious would not...be affected by natural selection, and would be left a fluctuating element, as perhaps we see in the species called polymorphic. " We shall best understand... | |
 | Charles Darwin - 1861 - Страниц: 470
...preservation of favourable variations and the rejection of injurious variations, I call Natural Selection. Variations neither useful nor injurious would not...be affected by natural selection, and would be left a fluctuating element, as perhaps we see in the species called polymorphic. We shall best understand... | |
 | John Watts - 1865 - Страниц: 206
...preservation of favourable variations and the rejection of injurious variations, I call Natural Selection. Variations neither useful nor injurious would not...be affected by natural selection, and would be left a fluctuating element, as perhaps we see in the species called polymorphic. " We shall best understand... | |
 | Charles Darwin - 1866 - Страниц: 668
...preservation of favourable variations, and the rejection of injurious variations, I call Natural Selection. Variations neither useful nor injurious would not...be affected by natural selection, and would be left a fluctuating element, as perhaps we see in the species called polymorphic. Several writers have misapprehended... | |
 | 1868 - Страниц: 884
...favourable variations and the rejection of SPECIES. unfavourable." variations, I call Natural Selection. Variations neither useful nor injurious would not...be affected by natural selection, and would be left a fluctuating element, as perhaps we see in the species called polymorphic,' He further supports these... | |
 | Charles Darwin - 1873 - Страниц: 492
...affected by natural selec^ tion, and would be left either a fluctuating element, as perhaps we eee in certain polymorphic species, or would ultimately...of the organism and the nature of the conditions. Several writers have misapprehended or objected to the term Natural Selection. Some have even imagined... | |
 | Chambers W. and R., ltd - 1874 - Страниц: 876
...preservation of favourable variations and the rejection of unfavourable variations, I call Natural Selection. Variations neither useful nor injurious would not...be affected by natural selection, and would be left a fluctuating element, as perhaps we see in the species called polymorphic.' He further supports these... | |
 | Charles Darwin - 1875 - Страниц: 504
...not be affected by natural selection, and would be left cither a fluctuating element, as perhaps \ve see in certain polymorphic species, or would ultimately...of the organism and the nature of the conditions. Several writers have misapprehended or objected to the term Natural Selection. Some have even imagined... | |
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