The Origin of Species by Means of Natural Selection,: Or the Preservation of Favoured Races in the Struggle for LifeJohn Murray, Albemarle Street., 1891 - 432페이지 |
도서 본문에서
85개의 결과 중 1 - 5개
vi 페이지
... Extinction caused by Natural Selection- Divergence of Character , related to the diversity of inhabitants of any small area , and to naturalisation - Action of Natural Selection , through divergence of Character and Extinction , on the ...
... Extinction caused by Natural Selection- Divergence of Character , related to the diversity of inhabitants of any small area , and to naturalisation - Action of Natural Selection , through divergence of Character and Extinction , on the ...
viii 페이지
... extinction - On simultaneous changes in the forms of life throughout the world - On the affinities of extinct species to each other and to living species - On the state of development of ancient forms -On the succession of the same ...
... extinction - On simultaneous changes in the forms of life throughout the world - On the affinities of extinct species to each other and to living species - On the state of development of ancient forms -On the succession of the same ...
ix 페이지
... Extinction separates and defines groups - MORPHOLOGY , be- tween members of the same class , between parts of the same individual- EMBRYOLOGY , laws of , explained by variations not supervening at any early age , and being inherited at ...
... Extinction separates and defines groups - MORPHOLOGY , be- tween members of the same class , between parts of the same individual- EMBRYOLOGY , laws of , explained by variations not supervening at any early age , and being inherited at ...
xii 페이지
... Extinct forms serving to connect existing groups . On earth adhering to the feet of migratory birds . On the wide geographical range of a species of Galaxias , a fresh - water fish . Discussion on analogical resemblances , enlarged and ...
... Extinct forms serving to connect existing groups . On earth adhering to the feet of migratory birds . On the wide geographical range of a species of Galaxias , a fresh - water fish . Discussion on analogical resemblances , enlarged and ...
xx 페이지
... extinct by new creations , but are to be regarded as their descendants through continued reproduction . " A well - known French botanist , M. Lecoq , writes in 1854 ( ' Etudes sur Géograph . Bot . , ' tom . i . p . 250 ) , " On voit que ...
... extinct by new creations , but are to be regarded as their descendants through continued reproduction . " A well - known French botanist , M. Lecoq , writes in 1854 ( ' Etudes sur Géograph . Bot . , ' tom . i . p . 250 ) , " On voit que ...
기타 출판본 - 모두 보기
자주 나오는 단어 및 구문
accumulated adapted admit affinities allied species America analogous ancient appear beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continued crossed crustaceans degree developed difficulty distinct species domestic animals doubt effects eggs embryo existing extinct extremely facts favourable female fertilised fertility flowers formation formerly forms fossil Fritz Müller genera genus geological geological period Glacial period gradations greater number habits Hence hybrids important increase individuals inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ larvæ less living male mammals manner Marsupials migration modified descendants natural selection naturalists nearly nest occasionally occur oceanic islands offspring organisation organs parent peculiar perfect pigeon pistil pollen present preserved principle probably produced quadrupeds ranked reciprocal crosses remarked resemblance rudimentary seeds sexual selection Silurian slight South America stamens sterility structure successive supposed tend theory tion variability variations varieties vary whilst whole wings young