The Origin of Species by Means of Natural Selection Or, The Preservation of Favored Races in the Struggle for LifeD. Appleton and Company, 1882 - 458페이지 |
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65개의 결과 중 1 - 5개
vi 페이지
... inhabitants of any small area , and to naturalisation - Action of Natural Selection , through Divergence of Character and Extinction , on the descendants from a common parent - Explains the grouping of all organic beings Advance in ...
... inhabitants of any small area , and to naturalisation - Action of Natural Selection , through Divergence of Character and Extinction , on the descendants from a common parent - Explains the grouping of all organic beings Advance in ...
viii 페이지
... inhabitants of oceanic Absence of Batrachians and of terrestrial Mammals - On the relation of the inhabitants of islands to those of the nearest main- land On colonization from the nearest source with subsequent modi- fication ...
... inhabitants of oceanic Absence of Batrachians and of terrestrial Mammals - On the relation of the inhabitants of islands to those of the nearest main- land On colonization from the nearest source with subsequent modi- fication ...
xv 페이지
... inhabitants of the middle regions of Africa , some one would be better fitted than the others to bear the diseases of the country . This race would consequently multiply , while the others would decrease ; not only from their inability ...
... inhabitants of the middle regions of Africa , some one would be better fitted than the others to bear the diseases of the country . This race would consequently multiply , while the others would decrease ; not only from their inability ...
1 페이지
... inhabitants of that continent . These facts , as will be seen in the latter chapters of this volume , seemed to throw some light on the origin of species - that mystery of mysteries , as it has been called by one of our greatest ...
... inhabitants of that continent . These facts , as will be seen in the latter chapters of this volume , seemed to throw some light on the origin of species - that mystery of mysteries , as it has been called by one of our greatest ...
4 페이지
... inhabitant of this world . Still less do we know of the mutual relations of the innumerable inhabitants of the world during the many past geological epochs in its history . Although much remains obscure , and will long remain obscure ...
... inhabitant of this world . Still less do we know of the mutual relations of the innumerable inhabitants of the world during the many past geological epochs in its history . Although much remains obscure , and will long remain obscure ...
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adapted admit affinities allied species America analogous ancient appear Asa Gray beak become bees believe belonging birds breeds cause cells characters climate closely allied colour continued crossed crustaceans degree developed difficulty distinct species doubt effects eggs embryo existing extinct extremely facts favourable fertilised fertility flowers formations formerly forms fossil Fritz Müller genera genus geological Glacial period gradations greater number groups of species habits Hence hybrids important 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 reproductive resemblance rudimentary seeds sexual selection slight South America stamens sterility structure struggle successive supposed theory tion variability variations varieties vary whilst whole wings young