Evolutionary BiologyOxford University Press, Incorporated, 1979 - 565 pagine Futuyma (ecology and evolution, SUNY Stony Brook) covers such subject areas as phylogeny, paleobiology, genetic mechanisms of change and speciation, character evolution, the theory of processes and macroevolution, and new molecular perspectives. Numerous line drawings, charts, diagrams, and maps are provided. Annotation copyrighted by Book News, Inc., Portland, OR |
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Pagina 169
... body ( Figure 4 ) ; if it kept pace with the body , we would be megacephalic monsters as adults . Many allometric relations are adaptive . Organs like the intestine , whose function is surface - dependent , often grow disproportionately ...
... body ( Figure 4 ) ; if it kept pace with the body , we would be megacephalic monsters as adults . Many allometric relations are adaptive . Organs like the intestine , whose function is surface - dependent , often grow disproportionately ...
Pagina 170
... body length x . Thus the ratio of the organ's surface area to the volume of body it serves is constant only if y = bx3 / 2 . Evolutionary changes in adult body size can occur for many adaptive reasons . A specific body size may be ...
... body length x . Thus the ratio of the organ's surface area to the volume of body it serves is constant only if y = bx3 / 2 . Evolutionary changes in adult body size can occur for many adaptive reasons . A specific body size may be ...
Pagina 172
... body size as the ancestor , it will have passed through the ancestor's adult form while still juvenile ; its ontogeny will recapitulate its phylogeny . By considering such shifts in the timing of developmental events , Gould ( 1977 ) ...
... body size as the ancestor , it will have passed through the ancestor's adult form while still juvenile ; its ontogeny will recapitulate its phylogeny . By considering such shifts in the timing of developmental events , Gould ( 1977 ) ...
Sommario
A Synopsis of Evolutionary Theory | 19 |
Heredity and Development | 33 |
The Ecological Context of Evolutionary Change | 51 |
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AA AA adaptive advantageous alleles alterations ancestor animals appear arise associated average become behavior biological birds body bristle cause cent Chapter character characteristics chromosome common complex consists depends derived determined developmental differentiation direction Discuss distribution diversity dominant drift Drosophila ecological effect environment environmental enzyme equilibrium evidence evolution evolutionary evolved example exist extinction factors Figure fitness fossil function gene flow gene frequency genetic genetic variation genotypes geographic greater growth heterozygotes higher highly human hybrid important increase individuals insects instances interactions isolated kinds less loci locus major males mating mean mechanisms mutation natural selection occur offspring organisms origin patterns phenotypic plants Pleistocene polymorphic population possible predators present probability produce recombination relative reproduction response sexual similar single speciation species structure theory tion variance vary