The origin of species by means of natural selectionРипол Классик, 1929 - 454페이지 |
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4 페이지
... successive slight variations. 1 will then pass on to the variability of s ecies in a state of nature ; but I shall, unfortunately, e compelled to treat this subject far too briefly, as it can be treated properly only by giving long ...
... successive slight variations. 1 will then pass on to the variability of s ecies in a state of nature ; but I shall, unfortunately, e compelled to treat this subject far too briefly, as it can be treated properly only by giving long ...
27 페이지
... successive generations. May not those natura - ists who, knowing far less of the laws of inheritance than does the breeder, and knowing no more than he does of the intermediate links in the long lines of descent, yet admit that many of ...
... successive generations. May not those natura - ists who, knowing far less of the laws of inheritance than does the breeder, and knowing no more than he does of the intermediate links in the long lines of descent, yet admit that many of ...
28 페이지
... successive variations; man adds them up in certain directions useful to him. In this sense he may be said to make for himself useful breeds. The great power of this principle of selection is not hypothetical. It is certain that several ...
... successive variations; man adds them up in certain directions useful to him. In this sense he may be said to make for himself useful breeds. The great power of this principle of selection is not hypothetical. It is certain that several ...
29 페이지
... successive generations, of differences absolutel inappreciable by an uneducated eye—differences w ich l for one have vainly attempted to appreciate. Not one man in a thousand has accuracy of eye and judgment suflicient to become an ...
... successive generations, of differences absolutel inappreciable by an uneducated eye—differences w ich l for one have vainly attempted to appreciate. Not one man in a thousand has accuracy of eye and judgment suflicient to become an ...
79 페이지
... successive changes in the structure of their larvae. So, conversely, modifications in the adult wilzlflprobably often afl'ect the structure of the larva; but in cases natural selection will ensure that modifications consequent on other ...
... successive changes in the structure of their larvae. So, conversely, modifications in the adult wilzlflprobably often afl'ect the structure of the larva; but in cases natural selection will ensure that modifications consequent on other ...
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