Which of the following is true about human population distribution by age and gender? a. women suffer higher mortality rates than men. b. women have lower mortality rates than men. c. population distribution by age and gender is uniform around the world. d. the united states has the highest life expectancy in the world.

Women have lower mortality rates than men and live longer in general than men. This is for a number of reasons including life decisions, physiological factors, and other factors. 

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.

*blinks* youforgotyourname**