Evolution and the Diversity of Life: Selected EssaysBelknap Press of Harvard University Press, 1976 - Всего страниц: 721 The diversity of living forms and the unity of evolutionary processes are themes that have permeated the research and writing of Ernst Mayr, a Grand Master of evolutionary biology. The essays collected here are among his most valuable and durable: contributions that form the basis for much of the contemporary understanding of evolutionary biology. |
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Стр. 98
... function usually depends on two prerequisites . The first of these is that a structure or an organ can simultaneously perform two functions . " Numerous cases could be given amongst the lower animals of the same organ performing at the ...
... function usually depends on two prerequisites . The first of these is that a structure or an organ can simultaneously perform two functions . " Numerous cases could be given amongst the lower animals of the same organ performing at the ...
Стр. 99
... function . Perhaps the most frequently quoted one in the evolutionary literature is the shift of function be- tween swim bladder and lungs . Darwin , like the majority of writers since his time , assumed that the swim bladder was the ...
... function . Perhaps the most frequently quoted one in the evolutionary literature is the shift of function be- tween swim bladder and lungs . Darwin , like the majority of writers since his time , assumed that the swim bladder was the ...
Стр. 100
... function is acquired by the duplicated structure . In the other case a secondary function is added to the primary function without duplication of struc- ture . Both cases have the essential feature in common : that an existing structure ...
... function is acquired by the duplicated structure . In the other case a secondary function is added to the primary function without duplication of struc- ture . Both cases have the essential feature in common : that an existing structure ...
Содержание
Darwin Vindicated | 7 |
The Evolution of Living Systems | 17 |
Typological versus Population Thinking | 26 |
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Agassiz Amer analysis animals behavior biologists biology bird fauna characters cladistic classification colonization complete Darwin Darwinian definition discussion diversity Drosophila ecological elements endemic environment Essay evidence evolution evolutionary change evolutionist existence extinction fact factors families fauna female fossil function gene flow gene pool genera genetic program geneticists genotype genus geographic speciation geological groups Guinea habitat Hennig important individuals insects instance interpretation islands isolating mechanisms Jordan Lamarck land bridges Lyell males mammals Mayr morphological mutation natural selection naturalists niche North America organisms origin of species Papuan particularly phenomena phenotype philosophy phyletic phylogenetic phylogeny plants population genetics populations problem races recent region Rensch reproductive isolation result selection pressure sexual selection similar Simpson South species concept structure subspecies sympatric speciation systematics taxa taxon taxonomic taxonomists teleological teleonomic term Tertiary theory tion tropical types typological variability Wallace's Line Weber's Line zoogeographic Zool