Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1890 - Всего страниц: 351 |
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Стр. 25
... remarkable powers of movement . Page 284 . SELF - PROTECTION DURING SLEEP . The fact that the leaves of many plants place themselves at night in widely different positions from what they hold during the day , but with the one point in ...
... remarkable powers of movement . Page 284 . SELF - PROTECTION DURING SLEEP . The fact that the leaves of many plants place themselves at night in widely different positions from what they hold during the day , but with the one point in ...
Стр. 28
... remarkable . The page 565 . cotyledons of Phalaris became curved toward a distant lamp , which emitted so little light that a pen- cil held vertically close to the plants did not cast any shadow which the eye could perceive on a white ...
... remarkable . The page 565 . cotyledons of Phalaris became curved toward a distant lamp , which emitted so little light that a pen- cil held vertically close to the plants did not cast any shadow which the eye could perceive on a white ...
Стр. 34
... remarkable accordance in the power of digestion between the gastric juice of animals , with its pepsin and hydrochloric acid , and the secretion of Drosera with its ferment and acid be- longing to the acetic series . We can , therefore ...
... remarkable accordance in the power of digestion between the gastric juice of animals , with its pepsin and hydrochloric acid , and the secretion of Drosera with its ferment and acid be- longing to the acetic series . We can , therefore ...
Стр. 50
... remarkable fact that the young birds , according to Mr. Cunningham , can fly , while the adults have lost this power . As the larger ground - feeding birds seldom take flight , except to escape danger , it is probable that the nearly ...
... remarkable fact that the young birds , according to Mr. Cunningham , can fly , while the adults have lost this power . As the larger ground - feeding birds seldom take flight , except to escape danger , it is probable that the nearly ...
Стр. 54
... remarkable characters , seems improbable - or they must have become extinct in the wild state . But birds breed- ing on precipices , and good fliers , are unlikely to be ex- terminated ; and the common rock - pigeon , which has the same ...
... remarkable characters , seems improbable - or they must have become extinct in the wild state . But birds breed- ing on precipices , and good fliers , are unlikely to be ex- terminated ; and the common rock - pigeon , which has the same ...
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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