what is the process by which arteries become hard and thickened due to buildup of cholesterol and other substances on their walls?

Scientists who study the anatomy of the systems in the human body focus their studies on

Protein provides 4 calories per gram. mary is on a diet that requires her to eat atleast 40 grams of protein each day. shes eaten 152 calories of protein today. how much more protein does mary need to eat to meet her goal?

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."