Darwinism Stated by Darwin Himself: Characteristic Passages from the Writings of Charles DarwinD. Appleton, 1884 - Всего страниц: 351 |
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Стр. x
... Increase 85 • Climate as a Check to Increase 86 Influence of Insects in the Struggle for Existence 88 No such Thing as Change in the Result of the Struggle . 90 V. NATURAL SELECTION ; OR , THE SURVIVAL OF THE X CONTENTS .
... Increase 85 • Climate as a Check to Increase 86 Influence of Insects in the Struggle for Existence 88 No such Thing as Change in the Result of the Struggle . 90 V. NATURAL SELECTION ; OR , THE SURVIVAL OF THE X CONTENTS .
Стр. xii
... Increased and Diminished Use of Parts . 156 Reversion as a Factor in the Development of Man Reversion in the Human Family • Prepotence in the Transmission of Character - Natural Selection in the Development of Man How Man became upright ...
... Increased and Diminished Use of Parts . 156 Reversion as a Factor in the Development of Man Reversion in the Human Family • Prepotence in the Transmission of Character - Natural Selection in the Development of Man How Man became upright ...
Стр. 7
... 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 many instances of animals ren- dered sterile by ...
... 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 many instances of animals ren- dered sterile by ...
Стр. 17
... increase rapidly and tend to supplant the females . We We may therefore infer that much more vital force is expended in the pro- duction of ovules and fruit than in the production of pollen . The Differ- ent Forms of Flower , page 345 ...
... increase rapidly and tend to supplant the females . We We may therefore infer that much more vital force is expended in the pro- duction of ovules and fruit than in the production of pollen . The Differ- ent Forms of Flower , page 345 ...
Стр. 19
... increase in length and decrease in its thickness , and by the anther opening a little more widely , becomes specially adapted for the very different purpose of self - fertilization , through the combined aid of THE MOVEMENTS AND HABITS ...
... increase in length and decrease in its thickness , and by the anther opening a little more widely , becomes specially adapted for the very different purpose of self - fertilization , through the combined aid of THE MOVEMENTS AND HABITS ...
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Часто встречающиеся слова и выражения
acquired action admit allied apes appear Asa Gray become believe birds blush body breeds Catarrhine cause characters closely Cloth Darwin degree descended developed distinct species domestic doubt early effects eggs existence expression extinct eyes fact favorable feel females fertilization forms gemmules genera geotropism habit hair HERBERT SPENCER hermaphrodites highly horse Illustrations increase individuals inhabitants inherited insects instance intermediate islands kind labellum lancelet language larvæ less living lower animals males mammals manner ment mental mind modified monkeys movements muscles natural selection naturalists observed offspring organic Origin of Species papillæ parent peculiar period plants pollen possess present principle probably produced Professor progenitors Quadrumana quadrupeds races remarkable resemble rudimentary savages seeds seems seen sexes sexual selection slight South America structure suppose T. H. HUXLEY tend tendency tion transmitted utricle variability variations varieties various vertebræ whole wild worms young