A phase change is when matter changes into another form but keeps its properties
Answer:
The main function of viagra is to relax the muscles of the blood vessels in some areas of the body. It is used for the treatment of erectile dysfunction and for high blood pressure. The component of viagra is a competitor to the enzyme PDE5, breaking down cGMP. In the penis, blood is trapped, which results in the erection being maintained. When cGMP levels decrease, the concentration of calcium ions increases, causing smooth muscle contraction.
Explanation:
Skipping a meal puts one in the "fasting or post-absorbtive state," in which blood glucose levels decrease, leading to a decrease in insulin release, but an increase in glucagon release.
drop in glucose --> decreased insulin, increased glucagon --> glycogenolysis in liver --> glucose release from liver into bloodstream --> ^ blood glucose
