Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1890 - Всего страниц: 351 |
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Стр. xv
... acquired and some lost 327 Innumerable Links necessarily lost . 329 Plenty of Time for the Necessary Gradations 331 Wide Intervals of Time between the Geological Formations . 334 Sudden Appearance of Groups of Allied Species . 336 How ...
... acquired and some lost 327 Innumerable Links necessarily lost . 329 Plenty of Time for the Necessary Gradations 331 Wide Intervals of Time between the Geological Formations . 334 Sudden Appearance of Groups of Allied Species . 336 How ...
Стр. 4
... acquire and display this power only when it is of some advantage to them ; this being of comparatively rare occurrence , as they are affixed to the ground , and food is brought to them by the air and rain . We see how high in the scale ...
... acquire and display this power only when it is of some advantage to them ; this being of comparatively rare occurrence , as they are affixed to the ground , and food is brought to them by the air and rain . We see how high in the scale ...
Стр. 7
... acquired modifications , such as those from the increased use or disuse of a part , and even from mutilations if followed by disease . We have abundant evidence how susceptible the reproductive system is to changed conditions , in the ...
... acquired modifications , such as those from the increased use or disuse of a part , and even from mutilations if followed by disease . We have abundant evidence how susceptible the reproductive system is to changed conditions , in the ...
Стр. 17
... acquired , but follows as an incidental result from the sexual elements of the two or three forms having been adapted to act on one another in a particular manner , so that any other kind of union is inefficient , like that between ...
... acquired , but follows as an incidental result from the sexual elements of the two or three forms having been adapted to act on one another in a particular manner , so that any other kind of union is inefficient , like that between ...
Стр. 22
... and beautiful adaptations slowly acquired through each part occasionally varying in a slight degree. 22 DARWINISM STATED BY DARWIN HIMSELF . As interesting on the Theory of Development as on that of Direct Interposition.
... and beautiful adaptations slowly acquired through each part occasionally varying in a slight degree. 22 DARWINISM STATED BY DARWIN HIMSELF . As interesting on the Theory of Development as on that of Direct Interposition.
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Часто встречающиеся слова и выражения
acid acquired action adapted admit allied animals apes appear become believe birds body breeds cause character climate closely compared cotyledons crossed degree descended developed distinct species disuse domestic doubt early effects eggs embryo existence extinct eyes fact female fertilization forms gemmules genera genus geotropism Glacial habits hairs hermaphrodites highly horses increase individuals inhabitants inherited insects instance instincts islands kinds labellum lancelet larvæ leaves less living lower animals Malaxis paludosa males mammals manner mental millimetre modified monkeys movements muscles natural selection naturalists observed occasionally offspring organs Origin of Species ovules papillæ parent peculiar period pigeon plants points pollen pollinium possess present prey probably produced progenitors Quadrumana quadrupeds races radicles remarkable resemble rudimentary savages seedlings seeds seems sexes sexual elements sexual selection slight structure suppose surface tend tendency tion transmitted utricle variability variations varieties various vertebræ whole wild worms young