On The Origin Of SpeciesHarper Collins, 22 июл. 2014 г. - Всего страниц: 336 Published in 1859, The Origin of Species by Charles Darwin introduced the theory of natural selection to a newly-receptive public. As a young naturalist on the second voyage of HMS Beagle (1831-36), Darwin collected many plant and animal specimens, and it was his close examination of them that eventually led to his theories on evolution and natural selection. HarperPerennial Classics brings great works of literature to life in digital format, upholding the highest standards in ebook production and celebrating reading in all its forms. Look for more titles in the HarperPerennial Classics collection to build your digital library. |
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... Difficulties ofTheTheory Chapter VII—Miscellaneous Objectionsto The Theory of Natural Selection Chapter VIII—Instinct Chapter IX—Hybridism Chapter X—On The Imperfection of The Geological Record Chapter XI—On The Geological Succession ...
... Difficulties ofTheTheory Chapter VII—Miscellaneous Objectionsto The Theory of Natural Selection Chapter VIII—Instinct Chapter IX—Hybridism Chapter X—On The Imperfection of The Geological Record Chapter XI—On The Geological Succession ...
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... lawsof variation.Inthe five succeeding chapters,themost apparent and gravest difficultiesin accepting the theory will be given: namely, first, the difficulties of transitions, or how a simple being or a simple organ can.
... lawsof variation.Inthe five succeeding chapters,themost apparent and gravest difficultiesin accepting the theory will be given: namely, first, the difficulties of transitions, or how a simple being or a simple organ can.
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... difficulty inprovingitstruth: we may safelyconclude that very many ofthemost strongly marked domesticvarieties couldnot possiblylive inawild state.In many cases we donotknow what the aboriginal stock was,andso could not tell whether or ...
... difficulty inprovingitstruth: we may safelyconclude that very many ofthemost strongly marked domesticvarieties couldnot possiblylive inawild state.In many cases we donotknow what the aboriginal stock was,andso could not tell whether or ...
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... DIFFICULTY OF DISTINGUISHING BETWEEN VARIETIES AND SPECIES; ORIGIN OF DOMESTIC VARIETIES FROM ONE OR MORE SPECIES. When we look to the hereditary varieties or races of our domestic animals and plants, and compare them with closely ...
... DIFFICULTY OF DISTINGUISHING BETWEEN VARIETIES AND SPECIES; ORIGIN OF DOMESTIC VARIETIES FROM ONE OR MORE SPECIES. When we look to the hereditary varieties or races of our domestic animals and plants, and compare them with closely ...
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... difficulty of the task becomes manifest. BREEDSOF THEDOMESTIC PIGEON,THEIR DIFFERENCES ANDORIGIN. Believing that it is always besttostudy some special group, I have, afterdeliberation, taken up domestic pigeons. Ihave kept every breed ...
... difficulty of the task becomes manifest. BREEDSOF THEDOMESTIC PIGEON,THEIR DIFFERENCES ANDORIGIN. Believing that it is always besttostudy some special group, I have, afterdeliberation, taken up domestic pigeons. Ihave kept every breed ...
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according adapted admit advantage allied America amount animals appear become believe belonging birds breeds cause certain characters climate closely color common compared complex considerable considered continued crossed descendants developed difficulty distinct domestic doubt effects existing extinct extremely facts favourable fertility flowers formation forms genera genus geological give given greater groups habits Hence hybrids important increase individuals inhabitants inherited insects instance instincts intermediate inthe islands kind known laws less living look manner means modification namely natural selection naturalists nearly observed occasionally occur offspring ofthe onthe organs parent perfect period plants points present preserved principle probably produced remarked represented resemblance respect seeds seems seen separated shown similar single slight sometimes species stage sterility structure successive suppose theory thesame tothe variability variations varieties various vary whole widely young