Darwiniana: EssaysAppleton, 1894 - 475페이지 |
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3 페이지
... offspring , called hybrids , are so . It is affirmed not only that this is an experimental fact , but that it is a provision for the preservation of the purity of species . Such a criterion as this would be invaluable ; but ...
... offspring , called hybrids , are so . It is affirmed not only that this is an experimental fact , but that it is a provision for the preservation of the purity of species . Such a criterion as this would be invaluable ; but ...
16 페이지
... offspring are then carefully examined , and those which exhibit the peculiarity the most distinctly are selected for breeding ; and this operation is repeated until the desired amount of divergence from the primitive stock is reached ...
... offspring are then carefully examined , and those which exhibit the peculiarity the most distinctly are selected for breeding ; and this operation is repeated until the desired amount of divergence from the primitive stock is reached ...
18 페이지
... being better nourished than the others , but of their predominating over their fellows in other ways , and of having a better chance of leaving offspring , which will of course tend to reproduce the. 18 I THE DARWINIAN HYPOTHESIS.
... being better nourished than the others , but of their predominating over their fellows in other ways , and of having a better chance of leaving offspring , which will of course tend to reproduce the. 18 I THE DARWINIAN HYPOTHESIS.
19 페이지
Essays Thomas Henry Huxley. offspring , which will of course tend to reproduce the peculiarities of their parents . Their offspring will , by a parity of reasoning , tend to predominate over their contemporaries , and there being ( sup ...
Essays Thomas Henry Huxley. offspring , which will of course tend to reproduce the peculiarities of their parents . Their offspring will , by a parity of reasoning , tend to predominate over their contemporaries , and there being ( sup ...
31 페이지
... offspring into the likeness of the parent . It is the first great law of reproduction , that the offspring tends to resemble its parent or parents , more closely than anything else . Science will some day show us how this law is a ...
... offspring into the likeness of the parent . It is the first great law of reproduction , that the offspring tends to resemble its parent or parents , more closely than anything else . Science will some day show us how this law is a ...
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action adapted admit Agamogenesis Ancon animalcules animals animals and plants appears biology birds body called causes character Charles Darwin course creation Crustacea Darwin Darwin's views Darwinian deposited direct doctrine of evolution doubt Dysteleology endeavour epigenesis epoch Erasmus Darwin essay evidence ex nihilo exhibited existence extinct fact favour Flourens geological germ give rise groups horse Hyæna hypothesis inorganic world inquiry kind knowledge Lamarck laws lectures less living Maillet male matter means ment Mivart modification natural selection naturalists objections observation offspring organic nature organisation Origin of Species ovum parent peculiar phenomena philosophical physiological pigeons present primitive stock principles produced Quarterly Reviewer question races reason remarkable result scientific selective breeding sensations sense special creation speculations structure Suarez substantial forms suppose Teleology tendency theory thing thought tion toes truth variation varieties vegetabilia vegetable vera causa Wallace whole