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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... single bud with a new andsometimes widely different character from thatof the otherbuds on the same plant. These bud variations, as they may benamed,can be propagated bygrafts, offsets, etc., and sometimes by seed. They occur rarely ...
... single bud with a new andsometimes widely different character from thatof the otherbuds on the same plant. These bud variations, as they may benamed,can be propagated bygrafts, offsets, etc., and sometimes by seed. They occur rarely ...
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... single species, then such facts would have great weight in making us doubt about the immutability ofthemany closelyallied natural species—for instance,ofthe many foxes—inhabiting the different quarters of the world. I do notbelieve ...
... single species, then such facts would have great weight in making us doubt about the immutability ofthemany closelyallied natural species—for instance,ofthe many foxes—inhabiting the different quarters of the world. I do notbelieve ...
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... single wild stock. It hasoften been assumed that manhas chosenfor domesticationanimals andplants having an extraordinary inherent tendency tovary, and likewise to withstand diverse climates. I do not dispute that these capacities have ...
... single wild stock. It hasoften been assumed that manhas chosenfor domesticationanimals andplants having an extraordinary inherent tendency tovary, and likewise to withstand diverse climates. I do not dispute that these capacities have ...
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... In this sensehe maybesaid tohave madeforhimself useful breeds. The great power ofthis principle of selection is not hypothetical. It is certain that several of our eminent breeders have, even within a single lifetime, modified to a large.
... In this sensehe maybesaid tohave madeforhimself useful breeds. The great power ofthis principle of selection is not hypothetical. It is certain that several of our eminent breeders have, even within a single lifetime, modified to a large.
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Charles Darwin. have, even within a single lifetime, modified to a large extent their breeds of cattle and sheep. In order fully to realise what they have done itis almost necessary to read severalofthe manytreatises devoted to this ...
Charles Darwin. have, even within a single lifetime, modified to a large extent their breeds of cattle and sheep. In order fully to realise what they have done itis almost necessary to read severalofthe manytreatises devoted to this ...
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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