Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1890 - Всего страниц: 351 |
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Стр. 9
... shown that pollen is often carried by insects to a considerable distance from plant to plant . Therefore , one of the parents or ancestors of our two plants of Digitalis may have been crossed by a dis- tant plant growing under somewhat ...
... shown that pollen is often carried by insects to a considerable distance from plant to plant . Therefore , one of the parents or ancestors of our two plants of Digitalis may have been crossed by a dis- tant plant growing under somewhat ...
Стр. 13
... shown in the present volume that the offspring from the union of two distinct individuals , especially if their progenitors have been subjected to very different conditions , have an immense advantage in height , weight , constitutional ...
... shown in the present volume that the offspring from the union of two distinct individuals , especially if their progenitors have been subjected to very different conditions , have an immense advantage in height , weight , constitutional ...
Стр. 19
... shown that the Or- of Orchids , chidee exhibit an almost endless diversity of beautiful adaptations . When this or that part has been spoken of as adapted for some special purpose , it must not be supposed that it was originally always ...
... shown that the Or- of Orchids , chidee exhibit an almost endless diversity of beautiful adaptations . When this or that part has been spoken of as adapted for some special purpose , it must not be supposed that it was originally always ...
Стр. 29
... shown that the same degree of curvature in a plant may be induced in the course of an hour by several interrupt- ed illuminations lasting altogether for twenty minutes as by a continuous illumination of sixty minutes . We be- lieve that ...
... shown that the same degree of curvature in a plant may be induced in the course of an hour by several interrupt- ed illuminations lasting altogether for twenty minutes as by a continuous illumination of sixty minutes . We be- lieve that ...
Стр. 35
... shown that some other plants can absorb ammonia by their glandular hairs ; and these will profit by that brought to them by the rain . There is a second class of plants which , as we have just seen , can not digest , but absorb , the ...
... shown that some other plants can absorb ammonia by their glandular hairs ; and these will profit by that brought to them by the rain . There is a second class of plants which , as we have just seen , can not digest , but absorb , the ...
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Darwinism Stated by Darwin Himself: Characteristic Passages from the ... Charles Darwin Полный просмотр - 1884 |
Darwinism Stated by Darwin Himself: Characteristic Passages from the ... Charles Darwin Полный просмотр - 1884 |
Darwinism stated by Darwin himself: Characteristic passages from the ... Charles Darwin Ограниченный просмотр - 2023 |
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