Darwinism: An Exposition of the Theory of Natural Selection, with Some of Its ApplicationsMacmillan and Company, 1889 - 494 páginas |
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Página vii
... cross - fertilisation of plants ( Chap . XI ) ; ( 5 ) some fresh facts and arguments on the wind - carriage of seeds , and its bearing on the wide dispersal of many arctic and alpine plants ( Chap . XII ) ; ( 6 ) some new illustrations ...
... cross - fertilisation of plants ( Chap . XI ) ; ( 5 ) some fresh facts and arguments on the wind - carriage of seeds , and its bearing on the wide dispersal of many arctic and alpine plants ( Chap . XII ) ; ( 6 ) some new illustrations ...
Página xi
... INFERTILITY OF CROSSES BETWEEN DISTINCT SPECIES AND THE USUAL STERILITY OF THEIR HYBRID OFFSPRING Statement of the problem ... cross - fertilisation - Dimorphism and trimorphism anong plants- Cases of the fertility of hybrids and of the ...
... INFERTILITY OF CROSSES BETWEEN DISTINCT SPECIES AND THE USUAL STERILITY OF THEIR HYBRID OFFSPRING Statement of the problem ... cross - fertilisation - Dimorphism and trimorphism anong plants- Cases of the fertility of hybrids and of the ...
Página xii
... cross - fertilisation - The interpretation of the facts - Summary of additional facts bearing on insect fertilisation - Fertilisation of xii CONTENTS.
... cross - fertilisation - The interpretation of the facts - Summary of additional facts bearing on insect fertilisation - Fertilisation of xii CONTENTS.
Página 133
... fertilisation , have been proved to be strictly adaptive in so many cases that botanists now believe that all the ... cross - fertilisation , fruits have been developed to assist in the dispersal of seeds ; and their forms , sizes ...
... fertilisation , have been proved to be strictly adaptive in so many cases that botanists now believe that all the ... cross - fertilisation , fruits have been developed to assist in the dispersal of seeds ; and their forms , sizes ...
Página 152
... INFERTILITY OF CROSSES BETWEEN DISTINCT SPECIES AND THE USUAL STERILITY OF THEIR HYBRID OFFSPRING Statement of the problem ... cross - fertilisation - Dimorphism and trimorphism among plants- Cases of the fertility of hybrids and of the ...
... INFERTILITY OF CROSSES BETWEEN DISTINCT SPECIES AND THE USUAL STERILITY OF THEIR HYBRID OFFSPRING Statement of the problem ... cross - fertilisation - Dimorphism and trimorphism among plants- Cases of the fertility of hybrids and of the ...
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