The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Том 1AMS Press, 1972 - Всего страниц: 479 This is a reproduction of the original artefact. Generally these books are created from careful scans of the original. This allows us to preserve the book accurately and present it in the way the author intended. Since the original versions are generally quite old, there may occasionally be certain imperfections within these reproductions. We're happy to make these classics available again for future generations to enjoy! |
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Стр. 67
... widely diffused within their own country ( and this is a different consideration from wide range , and to a certain extent from commonness ) , oftenest give rise to varieties sufficiently well - marked to have been recorded in botanical ...
... widely diffused within their own country ( and this is a different consideration from wide range , and to a certain extent from commonness ) , oftenest give rise to varieties sufficiently well - marked to have been recorded in botanical ...
Стр. 68
... widely diffused than the other plants of the same country , which live under nearly the same conditions . A plant of this kind is not the less dominant because some conferva inhabiting the water or some parasitic fungus is infinitely ...
... widely diffused than the other plants of the same country , which live under nearly the same conditions . A plant of this kind is not the less dominant because some conferva inhabiting the water or some parasitic fungus is infinitely ...
Стр. 69
... widely diffused than plants higher in the scale ; and here again there is no close relation to the size of the genera . The cause of lowly - organised plants ranging widely will be discussed in our chapter on Geographical Distribution ...
... widely diffused than plants higher in the scale ; and here again there is no close relation to the size of the genera . The cause of lowly - organised plants ranging widely will be discussed in our chapter on Geographical Distribution ...
Содержание
CHAPTER I | 5 |
VARIATION UNDER NATURE | 51 |
Its bearing on natural selectionThe term used in a wide sense | 75 |
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Часто встречающиеся слова и выражения
acquired 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 developed difficulty distinct species disuse 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 improved increase in number individual differences inhabitants inherited insects instance instincts intercrossing intermediate kind lamellæ large number larger genera larvæ less likewise males manner Melipona Mivart natural selection naturalists nearly nest occasionally offspring organisation organs origin Origin of Species perfect period pigeons pollen pollen-grains present preserved principle probably produced progenitor quadrupeds rank Red Grouse relation remarked resemble rock-pigeon seeds sexes sexual sexual selection slight stamens striped structure struggle supposed swimbladder tend tendency tion transitional tree variability variations varieties vary widely wings young