The seattle longitudinal study of cognitive development discovered that, among older people, a) their general health has no discernible connection to intellectual ability. b) socioeconomic status has no discernible association with higher levels of intellectual functioning.. c) men tend to retain high levels of cognitive skills longer than women. d) higher socioeconomic status is associated with higher levels of intellectual functioning.

Which of these contraceptive methods would be most beneficial for a female who wishes to avoid side effects or surgery?

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In 2009, a flu pandemic was believed to have originated when viral transmission occurred from pig to human, thereby earning the designation, "swine flu." although pigs are thought to have been the breeding ground for the 2009 virus, sequences from bird, pig, and human viruses were all found within this newly identified virus. what is the most likely explanation of why this virus contained sequences from bird, pig, and human viruses? a) the virus was descended from a common ancestor of bird, pig, and human flu viruses.b) the infected individuals happened to be infected with all three virus types.c) related viruses can undergo genetic recombination if the rna genomes mix and match during viral assembly.d) the human was likely infected with various bacterial strains that contained all three rna viruses.