During a typical morning, Colin will check the clock more frequently as the time for his regularly scheduled lunch break approaches. In this case, Colin's clock checking behavior is reinforced on a schedule.

Fixed interval schedule

Explanation: A fixed interval schedule means that reinforcement becomes available after a specific period of time or Fixed Interval Schedule involve reinforcing a behavior after an interval of time has passed.

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.

answer; provide for the common defense: