The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen2AMS Press, 1972 |
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Página 144
... seeds of kinds of plants of any country might be floated by sea - currents during 28 days , and would re- tain their power of germination . In Johnston's Physical Atlas , the average rate of the several Atlantic currents is 33 miles per ...
... seeds of kinds of plants of any country might be floated by sea - currents during 28 days , and would re- tain their power of germination . In Johnston's Physical Atlas , the average rate of the several Atlantic currents is 33 miles per ...
Página 146
... seeds passing through the intestines of a bird ; but hard seeds of fruit pass uninjured through even the digestive organs of a turkey . In the course of two months , I picked up in my garden 12 kinds of seeds , out of the excrement of ...
... seeds passing through the intestines of a bird ; but hard seeds of fruit pass uninjured through even the digestive organs of a turkey . In the course of two months , I picked up in my garden 12 kinds of seeds , out of the excrement of ...
Página 149
... seeds from one part to another of the arctic and antarctic regions ; and during the Glacial period from one part of the now temperate regions to another . In the Azores , from the large number of plants common to Europe , in comparison ...
... seeds from one part to another of the arctic and antarctic regions ; and during the Glacial period from one part of the now temperate regions to another . In the Azores , from the large number of plants common to Europe , in comparison ...
Contenido
CONTENTS OF VOL | 1 |
CHAPTER X | 48 |
CHAPTER XII | 129 |
Derechos de autor | |
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The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1962 |
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1962 |
Términos y frases comunes
accumulated adapted admit adult affinity allied species ancient animals appear Archipelago arctic areas become beds believe birds breeds Cambrian changes characters classification climate closely allied continent crustaceans degree deposited difficulty distant distinct species domestic doubt embryo Europe existing extinct fact faunas fertilised fertility flowers formations formerly forms fossil fresh-water Fritz Müller Gärtner genera genus geological period geological record Glacial period groups of species habits hybrids hybrids produced important individuals inhabitants inherited insects instance intermediate intervals land larvæ less living mammals manner marine Marsupials migration modified descendants mongrels mountains natural selection naturalists nearly occur oceanic islands offspring organisation parent parent-form peculiar perfect pistil plants pollen present probably produced quadrupeds reciprocal crosses regions remains remarked reproductive resemblance rocks rudimentary organs seeds Silurian slight South America species belonging stage stamens sterility structure successive suppose terrestrial tertiary tion variations varieties whilst widely different wings