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 83
... given period . We have evidence of this , in the facts stated in the second chapter showing that it is the common and diffused or dominant species which of- fer the greatest number of recorded varieties . Hence , rare species will be ...
... given period . We have evidence of this , in the facts stated in the second chapter showing that it is the common and diffused or dominant species which of- fer the greatest number of recorded varieties . Hence , rare species will be ...
Página 378
... given geological period . FELIDE . The Cat - family . FERAL . Having become wild from a state of cultivation or domestication . FLORA . The totality of the plants growing naturally in a country , or during a given geological period ...
... given geological period . FELIDE . The Cat - family . FERAL . Having become wild from a state of cultivation or domestication . FLORA . The totality of the plants growing naturally in a country , or during a given geological period ...
Página 552
... given an account of Dr. Wells ' views in the Historical Sketch ( p . xvi . ) to my ' Origin of Species . ' Various cases of colour correlated with constitutional peculiar- ities are given in my ' Variation of Animals under Domestication ...
... given an account of Dr. Wells ' views in the Historical Sketch ( p . xvi . ) to my ' Origin of Species . ' Various cases of colour correlated with constitutional peculiar- ities are given in my ' Variation of Animals under Domestication ...
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