Darwiniana: Essays |
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We still remain very much in the dark about the causes of variation; the apparent
inheritance of acquired characters in some cases; and the struggle for existence
within the organism, which probably lies at the bottom of both of these ...
We still remain very much in the dark about the causes of variation; the apparent
inheritance of acquired characters in some cases; and the struggle for existence
within the organism, which probably lies at the bottom of both of these ...
16 페이지
If he wish to perpetuate the difference, to form a breed with the peculiarity in
question strongly marked, he selects such male and female individuals as exhibit
the desired character, and breeds from them. Their offspring are then carefully ...
If he wish to perpetuate the difference, to form a breed with the peculiarity in
question strongly marked, he selects such male and female individuals as exhibit
the desired character, and breeds from them. Their offspring are then carefully ...
19 페이지
The tendency of B to persist will grow with its persistence through successive
generations, and it will acquire all the characters of a new species. But, on the
other hand, if the conditions of life change in any degree, however slight, B may
no ...
The tendency of B to persist will grow with its persistence through successive
generations, and it will acquire all the characters of a new species. But, on the
other hand, if the conditions of life change in any degree, however slight, B may
no ...
26 페이지
When we call a group of animals, or of plants, a species, we may imply thereby,
either that all these animals or plants have some common peculiarity of form or
structure; or, we may mean that they possess some common functional character.
When we call a group of animals, or of plants, a species, we may imply thereby,
either that all these animals or plants have some common peculiarity of form or
structure; or, we may mean that they possess some common functional character.
27 페이지
Thus horses form a species, because the group of animals to which that name is
applied is distinguished from all others in the world by the following constantly
associated characters. They have—1, A vertebral column; 2, Mammae; 3, ...
Thus horses form a species, because the group of animals to which that name is
applied is distinguished from all others in the world by the following constantly
associated characters. They have—1, A vertebral column; 2, Mammae; 3, ...
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able action adapted admit animals appears authority become believe better body breed called causes changes character common complete consider course creation cross Darwin deposited direct distinct doctrine doubt effect evidence evolution existence experiments expression fact favour force forms further germ give given groups hand horse hypothesis important influence kind knowledge known laws less living matter means mind modification natural natural selection objections observation once operation opinion organic Origin of Species parent particular persons phenomena plants position possible present principles probably produced Professor prove question races reason record relations remains remarkable respect result scientific selective breeding sense similar sort structure suppose term theory thing thought tion true variation varieties vary views whole writer
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| 제목 | Darwiniana: Essays 2권/Collected essays by T.H. Huxley 2권/Collected essays 2권/Essays, Thomas Henry Huxley |
| 저자 | Thomas Henry Huxley |
| 발행인 | Appleton, 1894 |
| 길이 | 475페이지 |
| 서지정보 내보내기 | BiBTeX EndNote RefMan |