The answer is B Avoiding a friend with whom you've recently had an argument, and spending time with friend with whom your're still on friendly terms.
True it is also the smallest passage in the human body
Answer:
There are air filters to purify the air and water filters to clean the water. Well, the kidneys are like a filtering system, too. They contain nephrons, which filter waste from the blood in two stages. First, nephrons take waste as well as needed materials out of blood. Then, the materials the body needs (like water and glucose) are returned to the blood and wastes are eliminated from the body. This is one way the kidneys maintain homeostasis. The kidneys also regulate the amount of water in the body. The amount of water the kidneys return to the blood depends on the conditions inside and outside of the body. This is another way the excretory system maintains homeostasis. For example, you will make more urine on a cool day when you have drunk a lot of water than you will on a hot day when you've hardly had anything to drink.
(I answered a question similar to this some time ago so you might also find it there.) Hope It Helps!
Confirming patients appointments is a good practice for the medical office because it help reduces no-shows such as the medical office can make a cancellation appointments. That will waste physicians time and also take valuable appointment slot away from other patient.
