Mónica Siañez, Linda Highfield, Héctor Balcazar, Timothy Collins, Sara Grineski
An Examination of the Association of Multiple Acculturation Measures with Asthma Status Among Elementary School Students in El Paso, Texas
Journal of immigrant and minority health
selective breeding species rodent sometimes occasioned unexpected unexplained correlated changes sex ratio proportion male birth experiments selective breeding blood ph sexual drive body weight sexual dimorphism adult body weight resistance dietary toxin reportedly accompanied strange phenomenon attempts made explain overall form explanation selection one characters incidentally accompanied selection hormone concentrations turn responsible variation sex ratio example one may suppose selection sexual drive ipso facto selects offspring sex ratios 1 androgen levels partially responsible sexual drive 2 androgen levels also weakly genetically determined 3 lastly ex hypothesi androgen concentrations partially responsible offspring sex ratios line reasoning correct selection sex drive would expected accompanied correlated changes offspring sex ratio