When people seem confused and have trouble staying awake, these impairments may indicate they have

Which of the following is NOT a factor in keeping older women from marrying or remarrying?

a) There are more elderly women than men. b) The marriage gradient and social norms work to suggest that women should marry men older than themselves. c) There is less social stigma toward the lesbian lifestyle. d) The marriage gradient makes remarrying easier for men because the eligibility pool of women is larger.

Recruitment proceeds in a way that ensures that the

A. least amount of energy and force possible will be used to do a job. B. greatest amount of energy and force possible will be used to do a job. C. fastest fibers will be recruited first to produce optimum reaction time. D. fibers with the greatest oxygen requirements will be used only when absolutely necessary for survival.