______ people lacking access to clean drinking water (2014 figures).

If a therapist thinks about psychological disorders in the same general way a physician thinks about diseases, the therapist is primarily applying the ______________ model to understand mental illness

A) diagnostic B) biopsychosocial C) maladaptive D) medical

The language used by neurons to communicate ________

a. involves simple "yes-no," "on-off" electrochemical impulses b. is not yet known, despite years of research c. is extremely flexible and complex, similar to human spoken language d. involves neurons transitioning from one of four different electrochemical states to another