I feel like a failure in so many different waysI can't even do my work I'm so du. mblife s just getting harder and harderI'm not even passing band or girls p. e my most easiest classesWhat do I do

What effect do stimulants, such as cocaine, have on the nervous system? o a. stimulants change the activity of neurotransmitters. o b. stimulants mimic hormones and influence moods. o o c. stimulant|mchange how sensory information is processed. d. stimulants decrease brain activity.

True or false mucous membranes destroy pathogens on the outer body surface, at body openings.

What should be changed to make the following sentence true? "the stress model suggests that people with a predisposition for a disorder are more likely to develop the disorder when faced with stress."