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도서 These several conditions alone render it probable that variability of every kind...에 대해 검색한 22개 도서 중 1 - 10
" These several conditions alone render it probable that variability of every kind is directly or indirectly caused by changed conditions of life. Or, to put the case under another point of view, if it were possible to expose all the individuals of a species... "
The Law of Heredity: A Study of the Cause of Variation, and the Origin of ... - 140 페이지
저자: William Keith Brooks - 1883 - 336 페이지
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The American Naturalist

1909
...'"Variation," 2: 229. '"Variation," 2: 232. '"Origin," 1: 10. These several conditions alone render it probable that variability of every kind is directly...absolutely uniform conditions of life, there would be no variability.11 We have good reason to believe, as shown in the first chapter, that changes in the conditions...
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The American Naturalist

1909
...'"Variation," 2: 229. '"Variation," 2: 232. '"Origin," 1: 10. These several conditions alone render it probable that variability of every kind is directly...caused by changed conditions of life. Or, to put the ease under another point of view, if it were possible to expose all the individuals of a species during...
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Catholic World, 10권

1870
...ancestors, have been exposed. . . . These several considerations alone render it probable that variation of every kind is directly or indirectly caused by...possible to expose all the individuals of a species to absolutely uniform conditions, there would be no variability.' When variations of all kinds and...
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Nature, 6권

Sir Norman Lockyer - 1872
...conclusion that variability is not an ultimate fact necessarily contingent on reproduction (p. 253), and that variability of every kind is directly or indirectly caused by changed conditions of life (p. 255). Dr. Bree, however, referring to the same chapter of the same work, gives his view of the...
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Lectures on the Physiology of Plants

Sydney Howard Vines - 1886 - 710 페이지
...aboriginal law as inheritance. Darwin, however, does not accept this view, but comes to the conclusion that variability of every kind is directly or indirectly caused by changed conditions of life. "If," he goes on, "it were possible to expose all the individuals of a species during many generations...
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A Review of the Systems of Ethics: Founded on the Theory of Evolution

Charles Mallory Williams, Cora May Williams - 1892 - 581 페이지
...presently to be given lead to the conclusion that each modification must have its own distinct cause." It is " probable that variability of every kind is...point of view, if it were possible to expose all the i Vol. II. Chap. XXII. individuals of a species during many generations to absolutely uniform conditions...
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An Examination of Weismannism

George John Romanes - 1893 - 221 페이지
...mere act of sexual union \amphimixis\ l. And again : — These several considerations alone render it probable that variability of every kind is directly...indirectly caused by changed conditions of life. Or, to put it under another point of view, if it were possible to expose all the individuals of a species during...
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An Examination of Weismannism

George John Romanes - 1893 - 221 페이지
...considerations" which Darwin has adduced with regard to this very point, and which, as he says, ''alone render it probable that variability of every kind is directly...indirectly caused by changed conditions of life," with the consequence that " those authors who attribute all variability to the mere act of sexual union...
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Charles Darwin's Works: The variation of animals and plants under ...

Charles Darwin - 1896
...occurred with many of our highly cultivated trees and herbs. These several considerations alone render it probable that •variability of every kind is directly...changed conditions of life. Or, to put the case under anol her point of view, if it were possible to expose all the individuals of a species during many...
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The Variation of Animals and Plants Under Domestication, 2권

Charles Darwin - 1898 - 495 페이지
...occurred with many of our highly cultivated trees and herbs. These several considerations alone render it probable that, variability of every kind is -directly...changed conditions of life. Or, to put the case under anot her point of view, if it were possible to expose all the individuals of a species during many...
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