The Origin of Species by Means of Natural Selection, Or, The Preservation of Favored Races in the Struggle for Life: Reprinted from the Sixth London Edition, with All Additions and CorrectionsA. L. Burt Company, 1890 - 458페이지 |
도서 본문에서
87개의 결과 중 1 - 3개
51 페이지
... individuals , and the species which are most widely diffused within their own country ( and this is a different consideration from wide range , and to a certain extent from commonness ) , oftenest give rise to varieties sufficiently ...
... individuals , and the species which are most widely diffused within their own country ( and this is a different consideration from wide range , and to a certain extent from commonness ) , oftenest give rise to varieties sufficiently ...
94 페이지
... individual differences are always included , will evidently be favorable . A large num- ber of individuals , by giving a better chance within any given period for the appearance of profitable variations , will compensate for a lesser ...
... individual differences are always included , will evidently be favorable . A large num- ber of individuals , by giving a better chance within any given period for the appearance of profitable variations , will compensate for a lesser ...
210 페이지
... individuals , as with the race - horse and greyhound , or as with the game - cock , by breeding from the victorious birds . So under nature with the nascent giraffe , the individuals which were the highest browsers and were able during ...
... individuals , as with the race - horse and greyhound , or as with the game - cock , by breeding from the victorious birds . So under nature with the nascent giraffe , the individuals which were the highest browsers and were able during ...
기타 출판본 - 모두 보기
자주 나오는 단어 및 구문
adapted admit affinities ALEXANDRE DUMAS allied species America ancient appear beak become bees believe belonging birds breeds cause cells characters climate closely allied color continued crossed crustaceans degree developed difficulty distinct species domestic doubt effects eggs embryo existing extinct extremely facts favorable females fertility flowers formation forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number groups of species habits Hence hybrids important individuals inhabitants inherited insects instance instincts intercrossing intermediate intervals kind lamellæ larvæ less living male mammals manner marsupials migration modified descendants natural selection naturalists nearly nest oceanic islands offspring organs paleozoic parent peculiar perfect pigeons pistil pollen present principle probably produced quadrupeds ranked remarked resemblance rudimentary seeds Silurian SIR WALTER SCOTT slight South America stamens sterility structure successive suppose tend theory tion trees variability variations varieties vary whole widely different wings young