What is the function (purpose) of the valves which connect the heart chambers? allows blood to flow between the two atria
allows blood to flow between the two ventricles
allows blood to flow from the atria to the ventricle

Dora experiences frequent headaches and was ordered by her doctor to take medicine for headache relief. what should she do so as not to abuse the medicine? take the medication as prescribed take an extra over-the-counter pill take double the dose of the prescribed medicine to make the headaches go away quickly take the medication to relieve her feelings of loneliness and depression

In which way does nicotine cause addiction? by stimulating the brain's pleasure center by increasing blood-sugar levels by decreasing dopamine levels by reducing depression and anxiety

Your good friend emma invited you to her 18-year-old cousin matt's birthday party. emma is a straight-a student who is also on the cheerleading squad. when you get to her cousin's house, you see that there are no adults there. emma's cousin hands her a beer. he then hands you a beer and says, "here, have one. i do it all the time, and i never get caught." what would you do?