The origin of species by means of natural selectionРипол Классик, 1929 - 454페이지 |
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70개의 결과 중 1 - 5개
11 페이지
... Hence, if man goes on selecting, and thus augmenting, any peculiarity, he will almost certainly unconsciously modify other parts of the structure, owing to the mysterious laws of the correlation of growth. The result of the various ...
... Hence, if man goes on selecting, and thus augmenting, any peculiarity, he will almost certainly unconsciously modify other parts of the structure, owing to the mysterious laws of the correlation of growth. The result of the various ...
13 페이지
... Hence it has been argued that no deductions can be drawn from domestic races to species in a state of nature. I have in vain endeavoured to discover on what decisive facts the above statement has so ofien and so boldly been made. There ...
... Hence it has been argued that no deductions can be drawn from domestic races to species in a state of nature. I have in vain endeavoured to discover on what decisive facts the above statement has so ofien and so boldly been made. There ...
22 페이지
... Hence the supposed aboriginal stocks must either still exist in the countries where they were originally domesticated, and yet be unknown to ornithologists; and this, considering their size, habits, and remarkable characters, seems very ...
... Hence the supposed aboriginal stocks must either still exist in the countries where they were originally domesticated, and yet be unknown to ornithologists; and this, considering their size, habits, and remarkable characters, seems very ...
23 페이지
... Hence it must be assumed not only that half-civilised man succeeded in thoroughly domesticating several s ice, but that he intentionally or by chance pick out extraordinarily abnormal fiecies; and further, that these very species have ...
... Hence it must be assumed not only that half-civilised man succeeded in thoroughly domesticating several s ice, but that he intentionally or by chance pick out extraordinarily abnormal fiecies; and further, that these very species have ...
36 페이지
... hence the Thoulouse and the common breed, which diifer on] in colour, that most fleeting of characters, have late y been exhibited as distinct at our poultryshows. I think these views further explain what has sometimes been noticed ...
... hence the Thoulouse and the common breed, which diifer on] in colour, that most fleeting of characters, have late y been exhibited as distinct at our poultryshows. I think these views further explain what has sometimes been noticed ...
목차
5 | |
ON was GEOLOGICAL SUCCESSION OF ORGANIC | 155 |
GEOGRAPHICAL DISTRIBUTION | 282 |
Gnoonnmcu DISTRIBUTION Continued | 302 |
RECAPITULATION AND CONCLUSION | 415 |
41 | 449 |
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자주 나오는 단어 및 구문
action adapted advantage allied America amount ancient animals appear become believe birds breeds cause characters climate closely common considered continuous crossed descendants difl'erent distinct domestic doubt evidence existing extinct extremely facts families favourable fertility find first flowers follow formations forms genera genus give given greater groups habits hand Hence hybrids important increase individuals inhabitants inherited insects instance instincts intermediate islands kind known land laws less lines living look males manner means migration modification namely natural selection naturalists nearly never observed occur organic origin parent perfect period plants points present principle probably produced range ranked reason regions remains remarked resemble seeds seems seen separated shown single slight sometimes species sterility structure struggle successive suppose tend theory tion trees variability variations varieties vary whole widely