The Origin of Species by Means of Natural Selection: Or, The Preservation of Favored Races in the Struggle for Life and The Descent of Man and Selection in Relation to SexModern library, 1936 - 1000 páginas |
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Página 47
... widely diffused than plants higher in the scale ; and here again there is no close relation to the size of the genera . The cause of lowly - organised plants ranging widely will be discussed in our chapter on Geographical Distribution ...
... widely diffused than plants higher in the scale ; and here again there is no close relation to the size of the genera . The cause of lowly - organised plants ranging widely will be discussed in our chapter on Geographical Distribution ...
Página 177
... widely separated families of plants , single species and single genera possess the power of revolving , and have thus become twiners , they must have independently acquired it , and cannot have in- herited it from a common progenitor ...
... widely separated families of plants , single species and single genera possess the power of revolving , and have thus become twiners , they must have independently acquired it , and cannot have in- herited it from a common progenitor ...
Página 314
... widely ; for we should never forget that to range widely implies not only the power of crossing barriers , but the more important power of being vic- torious in distant lands in the struggle for life with foreign associates . But ...
... widely ; for we should never forget that to range widely implies not only the power of crossing barriers , but the more important power of being vic- torious in distant lands in the struggle for life with foreign associates . But ...
Otras ediciones - Ver todas
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1936 |
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1936 |
The Origin of Species by Means of Natural Selection: Or, The Preservation of ... Charles Darwin Vista de fragmentos - 1936 |
Términos y frases comunes
acquired adult allied apes appear beak beautiful become believe birds breeds cause characters civilised closely colour common confined crossed crustaceans degree descended developed distinct species domestic doubt eggs existing extinct extremely fact favourable feathers female fertility fishes formation forms Fritz Müller genera genus given gradations greater number groups habits Hence hybrids important individuals inhabitants inherited insects instance instincts intermediate islands kind larvæ latter Lepidoptera less likewise living lower animals Malay Archipelago males mammæ mammals manner Marsupials modified monkeys natural selection naturalists nearly nest observed ocelli offspring organs Origin of Species ornaments perfect period pigeons plumage pollen present probably produced progenitor quadrupeds races Red Grouse relation remarks resemble rudimentary seeds sexes sexual selection shew shewn slight South America sterility stridulating structure supposed tail tion variability variations varieties various vary whilst whole widely wings young