Studies in History of Biology, Выпуск 3William R. Coleman, Camille Limoges Johns Hopkins University Press, 1979 |
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Стр. 42
... become distinct species in their own right ( 1856-58 : 242-43 ) . A10 , for example , might become semiaquatic , while 110 might succeed in supplanting B within a drier habitat . Here , then , was Darwin's solution to the problem of ...
... become distinct species in their own right ( 1856-58 : 242-43 ) . A10 , for example , might become semiaquatic , while 110 might succeed in supplanting B within a drier habitat . Here , then , was Darwin's solution to the problem of ...
Стр. 44
... becoming rare . Other species , ecologically dependent upon those becoming rare , will also suffer restric- tions in their ... become rare toward the borders of their ranges . Intermediate or hybrid forms , when they occasionally existed ...
... becoming rare . Other species , ecologically dependent upon those becoming rare , will also suffer restric- tions in their ... become rare toward the borders of their ranges . Intermediate or hybrid forms , when they occasionally existed ...
Стр. 163
... become even more restricted by the advance of science . Initially the sperm was seen as a young germ , which used the egg merely as a cradle and the yolk for sustenance ; later it was seen as an element which had to a certain extent an ...
... become even more restricted by the advance of science . Initially the sperm was seen as a young germ , which used the egg merely as a cradle and the yolk for sustenance ; later it was seen as an element which had to a certain extent an ...
Содержание
The Vicissitudes | 23 |
Animal Heat as a Biological | 67 |
Louis Agassiz and the Species Question MARY PICKARD WINSOR | 89 |
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acquired characters Agassiz animal heat appeared asexual believed Bergmann Bergmann's Rule biological biologists breeding catastrophists cells century Charles Darwin concept Darwin Darwinian discussion Dobzhansky Ernst Mayr Essay eugenics evidence evolution evolutionary Ewart experimental experimentalists experiments explain F. B. Sumner fact factors fertilization fish forms gene pool geneticists genotype genotype-phenotype distinction genus geographic isolation geographical races geology Göttingen hereditary heredity homoiotherms Ibid ideas important individual inheritance of acquired Johannsen's Journal Kol'tsov Leuckart Lord Morton's Louis Agassiz Lyell male Mayr's Mendel mutations natural populations natural selection naturalists offspring organism Origin of Species Owen parthenogenesis Peromyscus phenomenon phenotype phyletic physiology plants population genetics principle problem produced published role scientific Scripps sexual reproduction Siebold Soviet specimens spermatozoa Steenstrup subspecies sympatric speciation systematics taxonomic telegony temperature term gene fund term gene pool theory tion uniformitarianism University variability variations Wagner Wärmeökonomie Weismann Zoology