The Origin of Species by Means of Natural Selection: Or, the Preservation of Favored Races in the Struggle for Life, Volumen1D. Appleton, 1898 |
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Página v
... Causes of Variability - Effects of Habit and the use or disuse of Parts - Correlated Variation - Inheritance - Character of . Do- mestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of domestic ...
... Causes of Variability - Effects of Habit and the use or disuse of Parts - Correlated Variation - Inheritance - Character of . Do- mestic Varieties - Difficulty of distinguishing between Varieties and Species - Origin of domestic ...
Página vi
... caused by Natural Se- lection - 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 ...
... caused by Natural Se- lection - 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 ...
Página vii
... Causes which in- terfere with the acquisition through natural selection of useful structures - Gradations of structure with changed functions- Widely different organs in members of the same class , de- veloped from one and the same ...
... Causes which in- terfere with the acquisition through natural selection of useful structures - Gradations of structure with changed functions- Widely different organs in members of the same class , de- veloped from one and the same ...
Página x
... causes which prevent in many cases the acquisition through natural selection of useful structures . Lastly , reasons are given for disbelieving in great and sudden modifications . Gradations of character , often accompanied by changes ...
... causes which prevent in many cases the acquisition through natural selection of useful structures . Lastly , reasons are given for disbelieving in great and sudden modifications . Gradations of character , often accompanied by changes ...
Página xi
... causes of sterility of hybrids , added to and corrected . Pyrgoma found in the chalk . 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 ...
... causes of sterility of hybrids , added to and corrected . Pyrgoma found in the chalk . 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 ...
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Términos y frases comunes
adapted advantage allied analogous animals and plants appear Asa Gray beak become bees believe birds breeds caudicle cause cells characters climate closely colour common crossed cuckoo degree descendants developed difficulty distinct species disuse divergence domestic animals domestic races doubt effects eggs existence extinct extremely facts favourable females flowers forms Fritz Müller genera genus giraffe gradations greater number groups habits Hence hermaphrodites hive-bee important increase inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less males manner Melipona Mivart modified natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species parent perfect period pigeons pollen pollen-grains present preserved prey principle probably produced progenitor quadrupeds rank rarely Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual selection slight stamens striped structure struggle supposed swimbladder tend tendency tion tree variability variations varieties vary widely wings young