Darwinism: An Exposition of the Theory of Natural Selection, with Some of Its ApplicationsMacmillan and Company, 1889 - 494 páginas |
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Página x
... inhabit distinct areas - Adaptation to conditions at various periods of life - The continued existence of low forms of life - Extinction of low types among the higher animals— Circumstances favourable to the origin of new species ...
... inhabit distinct areas - Adaptation to conditions at various periods of life - The continued existence of low forms of life - Extinction of low types among the higher animals— Circumstances favourable to the origin of new species ...
Página 15
... inhabit . Agassiz , in his work on Lake Superior , states that the roadside weeds of the north- eastern United States , to the number of 130 species , are all European , the native weeds having disappeared westwards ; and in New Zealand ...
... inhabit . Agassiz , in his work on Lake Superior , states that the roadside weeds of the north- eastern United States , to the number of 130 species , are all European , the native weeds having disappeared westwards ; and in New Zealand ...
Página 36
... inhabits Southern Asia and Northern Africa ; the tree- porcupines , of which there are two closely allied species , one ... inhabit the same districts , when one prefers meadows the other woods , one a chalky soil the other sand , one a ...
... inhabits Southern Asia and Northern Africa ; the tree- porcupines , of which there are two closely allied species , one ... inhabit the same districts , when one prefers meadows the other woods , one a chalky soil the other sand , one a ...
Página 75
... inhabits has become occupied by Europeans it has developed a taste for a carnivorous diet , with alarming results . It began by picking the sheepskins hung out to dry or the meat in process of being cured . About 1868 it was first ...
... inhabits has become occupied by Europeans it has developed a taste for a carnivorous diet , with alarming results . It began by picking the sheepskins hung out to dry or the meat in process of being cured . About 1868 it was first ...
Página 76
... inhabits . ” 1 Mr. Charles Dixon has recorded a remarkable change in the mode of nest - building of some common chaffinches which were taken to New Zealand and turned out there . He says : " The cup of the nest is small , loosely put ...
... inhabits . ” 1 Mr. Charles Dixon has recorded a remarkable change in the mode of nest - building of some common chaffinches which were taken to New Zealand and turned out there . He says : " The cup of the nest is small , loosely put ...
Outras edições - Ver tudo
Darwinism: An Exposition of the Theory of Natural Selection, with Some of ... Alfred Russel Wallace Visualização integral - 1890 |
Darwinism: An Exposition of the Theory of Natural Selection, with Some of ... Alfred Russel Wallace Visualização integral - 1890 |
Darwinism: An Exposition of the Theory of Natural Selection ..., Volumes 1-2 Alfred Russel Wallace Visualização integral - 1889 |
Palavras e frases frequentes
abundant adapted adduced allied species America amount animals and plants appears birds breed brilliant butterflies cause characters climate closely allied colours of animals common concealment conspicuous continued cross-fertilisation crossed curious Darwin dicotyledons distinct species domestic animals effects eggs enemies Eocene evidence extinct facts faculty favourable female fertile fertilised flowers genera genus geological groups habits hybrids important increase individuals infertility inhabit insects intercrossing kind larva larvæ less living male mammalia mammals markings marsupials mimicry Miocene mode modified moths natural selection naturalists nests occur offspring organs Origin of Species peculiar pigeons Pliocene pollen portion possess probably produced Professor protectively coloured pupa regions remarkable resemblance seeds self-fertilisation Silurian similar specimens spots sterility structure struggle for existence supposed tail theory tints tion toes trees tropical usually variability variation varied varieties vegetation warning colours whole wild wings Zealand