The Origin of Species by Means of Natural Selection: Or the Preservation of Favoured Races in the Struggle for LifePenguin UK, 1982 M07 29 - 480 páginas With his revolutionary work The Origin of Species Charles Darwin overthrew contemporary beliefs about Divine Providence and the beginnings of life on earth. Written for the general public of the 1850s, it is a rigorously documented but highly readable account of the scientific theory that now lies at the root of our present attitude to the universe. Challenging notions such as the fixity of species with the idea of natural selection, and setting forth the results of pioneering work on the ecology of animals and plants, it made a lasting contribution to philosophical and scientific thought. |
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... closely, but unequally, relatedto each other,and in having restricted ranges CHAPTER THREE STRUGGLE FOR EXISTENCE Bearson natural selection– The term used in a wide sense – Geometrical powers of increase – Rapid increase of naturalised ...
... closely, but unequally, relatedto each other,and in having restricted ranges CHAPTER THREE STRUGGLE FOR EXISTENCE Bearson natural selection– The term used in a wide sense – Geometrical powers of increase – Rapid increase of naturalised ...
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... closely associated with the natural sciences, or atleast with what scientists generally acceptedas established facts. TheFrench naturalist Buffon had run into troublewith the authorities fordoubting the fixity of species, and ...
... closely associated with the natural sciences, or atleast with what scientists generally acceptedas established facts. TheFrench naturalist Buffon had run into troublewith the authorities fordoubting the fixity of species, and ...
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... closely allied animals replace one another as one travelled southwards? Why didextinct fossil species show such a close structural relation toliving animals? Above all, why, in the Galapagos islands did the finches and the giant ...
... closely allied animals replace one another as one travelled southwards? Why didextinct fossil species show such a close structural relation toliving animals? Above all, why, in the Galapagos islands did the finches and the giant ...
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... closely allied species and varieties, 'whichfill nearly thesame placein the economy ofnature'. Hence the lesshighly specialized, intermediate forms, lacking the more specific advantages of its twomost closely alliedspecies, would ...
... closely allied species and varieties, 'whichfill nearly thesame placein the economy ofnature'. Hence the lesshighly specialized, intermediate forms, lacking the more specific advantages of its twomost closely alliedspecies, would ...
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Contenido
INTRODUCTION | |
CHAPTER | |
ranging muchdiffused andcommon speciesvary most Species | |
CHAPTER FOUR | |
DIFFICULTIES ON THEORY | |
INSTINCT | |
making instinct Difficulties on the theory of the Natural | |
appearance in the lowest known fossiliferous strata | |
CHAPTER ELEVEN | |
Present distribution cannot be accounted for by differencesin physical conditions Importance of barriers Affinityof the productions ofthe same contin... | |
Distribution of freshwater productions On the inhabitants | |
Difficulties onthe theoryof | |
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The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1982 |
Términos y frases comunes
accumulated adapted advantage allied America amount animals appear authors become believe birds breeds bythe cause changes chapter characters climate closely common compared considered continuous crossed Darwin descendants developed difficulty distinct domestic doubt effects evidence existing explained extinct extremely facts families favourable fertility flowers formations forms genera genus geological give given greater groups habits hand havebeen Hence hybrids important improved increase individuals inhabitants inherited insects instance instincts intermediate inthe islands kinds known less living manner means migration modification namely natural selection naturalists nearly observed occasionally occur offspring ofthe onthe organs Origin parent perfect perhaps period plants points present principle probably produced range reason remarked represented resemble seeds seems separated single slight sometimes species sterility structure struggle successive supposed thatthe theory thesame tothe understand variability variations varieties vary whole widely