The Origin of Species by Means of Natural Selection,: Or the Preservation of Favoured Races in the Struggle for LifeJohn Murray, Albemarle Street., 1891 - 432 páginas |
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Página v
... Inheritance - Character of Domestic Varieties- Difficulty of distinguishing between Varieties and Species - Origin of domestic varieties from one or more species - Domestic Pigeons , their Differences and Origin - Principles of ...
... Inheritance - Character of Domestic Varieties- Difficulty of distinguishing between Varieties and Species - Origin of domestic varieties from one or more species - Domestic Pigeons , their Differences and Origin - Principles of ...
Página ix
... inherited at a corresponding age - RUDIMENTARY ORGANS ; their origin explained - Summary Page 340 CHAPTER XV . RECAPITULATION AND CONCLUSION . .. Recapitulation of the objections to the theory of Natural Selection - Recapitu- lation of ...
... inherited at a corresponding age - RUDIMENTARY ORGANS ; their origin explained - Summary Page 340 CHAPTER XV . RECAPITULATION AND CONCLUSION . .. Recapitulation of the objections to the theory of Natural Selection - Recapitu- lation of ...
Página 5
... Inheritance - Character of domestic varieties - Difficulty of distinguishing between varieties and species - Origin of domestic varieties from one or more species - Domestic pigeons , their differences and origin - Principles of ...
... Inheritance - Character of domestic varieties - Difficulty of distinguishing between varieties and species - Origin of domestic varieties from one or more species - Domestic pigeons , their differences and origin - Principles of ...
Página 6
... inheritance from either parent or from some more remote ancestor . Even strongly - marked differences occa- sionally appear in the young of the same litter , and in seedlings from the same seed - capsule . At long intervals of time ...
... inheritance from either parent or from some more remote ancestor . Even strongly - marked differences occa- sionally appear in the young of the same litter , and in seedlings from the same seed - capsule . At long intervals of time ...
Página 8
... Inheritance . Changed habits produce an inherited effect , as in the period of the flowering of plants when transported from one climate to another . With animals the increased use or disuse of parts has had a more marked influence ...
... Inheritance . Changed habits produce an inherited effect , as in the period of the flowering of plants when transported from one climate to another . With animals the increased use or disuse of parts has had a more marked influence ...
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Términos y frases comunes
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