The Origin of Species by Means of Natural Selection; Or, the Preservation of Favored Races in the Struggle for Life ... |
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These organs appear at first to offer another and far more serious difficulty; for
they occur in about a dozen kinds of fish, of which several are widely remote in
their affinities. When the same organ is found in several members of the same
class, ...
These organs appear at first to offer another and far more serious difficulty; for
they occur in about a dozen kinds of fish, of which several are widely remote in
their affinities. When the same organ is found in several members of the same
class, ...
270 페이지
I will not here enter on these several cases, but will confine myself to one special
difficulty, which at first appeared to me insuperable, and actually fatal to the
whole theory. I allude to the neuters or sterile females in insect communities; for
these ...
I will not here enter on these several cases, but will confine myself to one special
difficulty, which at first appeared to me insuperable, and actually fatal to the
whole theory. I allude to the neuters or sterile females in insect communities; for
these ...
271 페이지
This difficulty, though appearing insuperable, is lessened, or, as I believe,
disappears, when it is remembered that selection may be applied to the family, as
well as to the individual, and may thus gain the desired end. Breeders of cattle
wish ...
This difficulty, though appearing insuperable, is lessened, or, as I believe,
disappears, when it is remembered that selection may be applied to the family, as
well as to the individual, and may thus gain the desired end. Breeders of cattle
wish ...
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according action adapted admit advantage allied America amount animals appear become believe belonging birds breeds called cause certain characters climate closely color common considered continued crossed descended developed difficulty distinct domestic doubt effects existing extinct extremely facts favorable fertility flowers follow formation forms genera genus give given groups habits hand Hence hybrids important increase individuals inhabitants inherited insects instance instincts intermediate islands kind known land laws less living look male manner means modified namely natural selection naturalists nearly observed occur organs origin parent perfect period plants points present principle probably produced range ranked reason remarked resemblance respect seeds seems seen separated shown side similar single slight sometimes species stage sterility structure successive suppose tend theory tion variability variations varieties various vary whole widely young
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| 제목 | The Origin of Species by Means of Natural Selection; Or, the Preservation of Favored Races in the Struggle for Life ... Burt's Home Library Burt's library of the worlds best books Century series Home Library, New Pocket Editions of Standard Classics Nineteenth Century Collections Online (NCCO): Science, Technology, and Medicine: 1780-1925 Roxburghe classics The home library World's famous literature |
| 저자 | Charles Darwin |
| 에디션 | 재판 |
| 발행인 | A.L. Burt, 1890 |
| 소장 | 일리노이 대학 - 어바나-샴페인 |
| 디지털화된 날짜: | 2017년 8월 15일 |
| 길이 | 538페이지 |
| 서지정보 내보내기 | BiBTeX EndNote RefMan |