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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... of the volition ofthe plant itself. It is, therefore, of the highest importance to gain a clear insight into the means of modification and coadaptation. At the commencementof myobservations itseemed to meprobable that a careful study of ...
... of the volition ofthe plant itself. It is, therefore, of the highest importance to gain a clear insight into the means of modification and coadaptation. At the commencementof myobservations itseemed to meprobable that a careful study of ...
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... ofthe organism andthe nature ofthe conditions. The former seems to bemuch the more important; for nearly similar variations sometimes arise under, as far as we can judge, dissimilar conditions;and, onthe otherhand,dissimilar ...
... ofthe organism andthe nature ofthe conditions. The former seems to bemuch the more important; for nearly similar variations sometimes arise under, as far as we can judge, dissimilar conditions;and, onthe otherhand,dissimilar ...
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... ofthe conditionsisof subordinate importance in comparison withthe nature of the organism in determining each ... ofthe flowering ofplants when transported from one climate toanother. With animals the increased use or disuse of parts has ...
... ofthe conditionsisof subordinate importance in comparison withthe nature of the organism in determining each ... ofthe flowering ofplants when transported from one climate toanother. With animals the increased use or disuse of parts has ...
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... of the perfect fertility of varieties when crossed—a subject hereafter to be discussed), domestic races of the same ... ofthe many foxes—inhabiting the different quarters of the world. I do notbelieve, asweshall presently see,thatthe ...
... of the perfect fertility of varieties when crossed—a subject hereafter to be discussed), domestic races of the same ... ofthe many foxes—inhabiting the different quarters of the world. I do notbelieve, asweshall presently see,thatthe ...
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... of the apertures in the sternum are highly variable; so is thedegreeof divergence and relative sizeof the twoarms ofthe furcula. Theproportional width ofthegape of mouth, the proportional length ofthe eyelids, ofthe orificeofthe nostrils, ...
... of the apertures in the sternum are highly variable; so is thedegreeof divergence and relative sizeof the twoarms ofthe furcula. Theproportional width ofthegape of mouth, the proportional length ofthe eyelids, ofthe orificeofthe nostrils, ...
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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