Dr. Dubois conducts twin and family studies in different cultures to explore how environmental factors influence the expression of genetic tendencies toward alcohol use disorder. Dr. Dubois specializes in an emerging field called

answer; ///the (iroquois) cultures was made up of several groups, who spoke a common language

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.

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explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long