The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life, Volumen2D. Appleton, 1898 |
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... extinct intermediate varieties ; on their number- On the lapse of time , as inferred from the rate of denudation and of deposition - On the lapse of time as estimated by years -On the poorness of our palæontological collections - On the ...
... extinct intermediate varieties ; on their number- On the lapse of time , as inferred from the rate of denudation and of deposition - On the lapse of time as estimated by years -On the poorness of our palæontological collections - On the ...
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... extinction -On simultaneous changes in the forms of life throughout the world - On the affinities of extinct species to each other and to living species - On the state of development of ancient forms- On the succession of the same types ...
... extinction -On simultaneous changes in the forms of life throughout the world - On the affinities of extinct species to each other and to living species - On the state of development of ancient forms- On the succession of the same types ...
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... Extinction separates and defines groups - MORPHOLOGY , between members of the same class , between parts of the same individual- EMBRYOLOGY , laws of , explained by variations not super- vening at an early age , and being inherited at a ...
... Extinction separates and defines groups - MORPHOLOGY , between members of the same class , between parts of the same individual- EMBRYOLOGY , laws of , explained by variations not super- vening at an early age , and being inherited at a ...
Página 48
... extinct intermediate varieties ; on their number- On the lapse of time , as inferred from the rate of denudation and of deposition - On the lapse of time as estimated by years -On the poorness of our palæontological collections - On the ...
... extinct intermediate varieties ; on their number- On the lapse of time , as inferred from the rate of denudation and of deposition - On the lapse of time as estimated by years -On the poorness of our palæontological collections - On the ...
Página 51
... extinct , have in their turn been similarly con- nected with more ancient forms ; and so on backwards , always converging to the common ancestor of each great class . So that the number of intermediate and transitional links , between ...
... extinct , have in their turn been similarly con- nected with more ancient forms ; and so on backwards , always converging to the common ancestor of each great class . So that the number of intermediate and transitional links , between ...
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Términos y frases comunes
admit affinity allied species ancient animals appear Archipelago arctic areas become believe belonging birds Cambrian changes characters cies classification climate closely allied continent crustaceans degree deposited difficulty distant distinct species domestic doubt embryo eral 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 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 palæontologists Palæozoic parent parent-form peculiar perfect pistil plants pollen present probably produced quadrupeds reciprocal crosses regions remains remarked reproductive resemblance rocks rudimentary organs seeds Silurian South America stage stamens sterility structure successive suppose terrestrial tertiary theory tion variations varieties whilst whole widely different wings