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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... resemble varieties inbeing very 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 ...
... resemble varieties inbeing very 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 ...
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... resembled each other inadjacent areasorin different epochsin thesame area,the more likelydid it seem thatthose species might sharea common ancestor, and the less plausible seemed the hypothesis ofaseparate creation of each separate ...
... resembled each other inadjacent areasorin different epochsin thesame area,the more likelydid it seem thatthose species might sharea common ancestor, and the less plausible seemed the hypothesis ofaseparate creation of each separate ...
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... resembled eachother in theirearlier stages. Therewere vestigial organs– noted by Erasmus Darwin– which seemed once tohave served a purpose but nowserved none, suggesting that the modern speciesmight be radically differentfrom the ...
... resembled eachother in theirearlier stages. Therewere vestigial organs– noted by Erasmus Darwin– which seemed once tohave served a purpose but nowserved none, suggesting that the modern speciesmight be radically differentfrom the ...
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... resembled thatof a Negro'; but hispaper was not publisheduntil his famous'Two Essays upon Dewand Single Vision'appeared in 1818.Inthis paper he distinctly recognises the principleof natural selection, and this isthefirst recognition ...
... resembled thatof a Negro'; but hispaper was not publisheduntil his famous'Two Essays upon Dewand Single Vision'appeared in 1818.Inthis paper he distinctly recognises the principleof natural selection, and this isthefirst recognition ...
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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 ..., Volumen1 Charles Darwin Vista de fragmentos - 1884 |
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