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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... organised structuresvariable –Parts developedinan unusual manner are highly variable: specific charactersmore variablethan generic: secondarysexual characters variable – Speciesofthe same genus varyin ananalogous manner –Reversions to ...
... organised structuresvariable –Parts developedinan unusual manner are highly variable: specific charactersmore variablethan generic: secondarysexual characters variable – Speciesofthe same genus varyin ananalogous manner –Reversions to ...
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... organisation terminating inthe highest dicotyledons andvertebrata, these grades being fewin number, and generally marked byintervals of organiccharacter, which wefindto bea practicaldifficulty in ascertaining affinities; second, of ...
... organisation terminating inthe highest dicotyledons andvertebrata, these grades being fewin number, and generally marked byintervals of organiccharacter, which wefindto bea practicaldifficulty in ascertaining affinities; second, of ...
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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 | |
Otras ediciones - Ver todas
The Origin of Species by Means of Natural Selection, Or, the Preservation of ... Charles Darwin Sin vista previa disponible - 2015 |
The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Sin vista previa disponible - 2014 |
The Origin of Species by Means of Natural Selection: Or, the Preservation of ... Charles Darwin Sin vista previa disponible - 2018 |
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