Wast materials from the body tissues are filtered out from the blood as it flows through the kidneys. The waste material then leaves the body in the form of urine.
28 , because you would add them because they are on opposite sides of 0 on a number line.
The one responsible for doing much of the direct work with scheduling would be the receptionist. Account executive would be responsible for the insurance and billing, while the dental hygienist and assistant are responsible not for such paperwork, but can tell the receptionist the next course of action.