The Origin of Species by Means of Natural Selection: Or, the Preservation of Favored Races in the Struggle for Life, Volume 1D. Appleton, 1898 - Evolution |
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Results 1-5 of 52
Page vi
... namely , intercrossing , isolation , number of individuals - Slow action - Extinction caused by Natural Se- lection - Divergence of Character , related to the diversity of inhabitants of any small area , and to naturalisation - Action ...
... namely , intercrossing , isolation , number of individuals - Slow action - Extinction caused by Natural Se- lection - Divergence of Character , related to the diversity of inhabitants of any small area , and to naturalisation - Action ...
Page 5
... namely , first , the difficulties of transitions , or how a simple being or a simple organ can be changed and per- fected into a highly developed being or into an elab- orately constructed organ ; secondly , the subject of In- stinct ...
... namely , first , the difficulties of transitions , or how a simple being or a simple organ can be changed and per- fected into a highly developed being or into an elab- orately constructed organ ; secondly , the subject of In- stinct ...
Page 6
... namely , that each species has been independently created - is errone- ous . I am fully convinced that species are not immuta- ble ; but that those belonging to what are called the same genera are lineal descendants of some other and ...
... namely , that each species has been independently created - is errone- ous . I am fully convinced that species are not immuta- ble ; but that those belonging to what are called the same genera are lineal descendants of some other and ...
Page 8
... namely , the nature of the organ- ism , and the nature of the conditions . The former seems to be much the more important ; for nearly similar vari- ations sometimes arise under , as far as we can judge , dissimilar conditions ; and ...
... namely , the nature of the organ- ism , and the nature of the conditions . The former seems to be much the more important ; for nearly similar vari- ations sometimes arise under , as far as we can judge , dissimilar conditions ; and ...
Page 10
... namely , through the repro- ductive system of being affected , we may infer that variability is thus induced , partly from the fact of this system being extremely sensitive to any change in the conditions , and partly from the ...
... namely , through the repro- ductive system of being affected , we may infer that variability is thus induced , partly from the fact of this system being extremely sensitive to any change in the conditions , and partly from the ...
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Common terms and phrases
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 lamellę large number larger genera larvę 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