On the Origin of Species by Means of Natural Selection: Or The Preservation of Favoured Races in the Struggle for LifeHumphrey Milford, Oxford University Press, 1923 - 454 páginas |
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Página 3
... effects of external conditions , or of habit , or of the volition of the plant itself . The author of the Vestiges of Creation would , I presume , say that , after a certain unknown number of generations , some bird had given birth to a ...
... effects of external conditions , or of habit , or of the volition of the plant itself . The author of the Vestiges of Creation would , I presume , say that , after a certain unknown number of generations , some bird had given birth to a ...
Página 6
... that species . Furthermore , I am convinced that Natural Selection has been the main but not exclusive means of modification . CHAPTER I VARIATION UNDER DOMESTICATION Causes of Variability - Effects 6 ON THE ORIGIN OF SPECIES.
... that species . Furthermore , I am convinced that Natural Selection has been the main but not exclusive means of modification . CHAPTER I VARIATION UNDER DOMESTICATION Causes of Variability - Effects 6 ON THE ORIGIN OF SPECIES.
Página 7
... Effects of Habit - Correlation of Growth- Inheritance - Character of Domestic Varieties -- Difficulty of dis tinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons , their ...
... Effects of Habit - Correlation of Growth- Inheritance - Character of Domestic Varieties -- Difficulty of dis tinguishing between Varieties and Species - Origin of Domestic Varieties from one or more Species - Domestic Pigeons , their ...
Página 8
... effect which confine- ment or cultivation has on the function of the repro- ductive system ; this system appearing to be far more susceptible than any other part of the organisation , to the action of any change in the conditions of ...
... effect which confine- ment or cultivation has on the function of the repro- ductive system ; this system appearing to be far more susceptible than any other part of the organisation , to the action of any change in the conditions of ...
Página 10
... effects of the conditions of life are in comparison with the laws of reproduction , of growth , and of inheritance ... effect , though apparently more in the case of plants . Under this point of view , Mr. Buckman's recent experiments on ...
... effects of the conditions of life are in comparison with the laws of reproduction , of growth , and of inheritance ... effect , though apparently more in the case of plants . Under this point of view , Mr. Buckman's recent experiments on ...
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Términos y frases comunes
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