Enumerated powers. The enumerated powers are a list of items found in Article I, Section 8 of the U.S. Constitution that set forth the authority of Congress. In summary, Congress may exercise the powers that the Constitution grants it, subject to the individual rights listed in the Bill of Rights.
The average adult has 10-12 pints of blood. Someone needs blood every two seconds in the U.S. 40,000 pints: Amount of donated blood used each day in the U.S. and Canada. Through a process of separating blood into its individual parts, a single unit of blood can help extend the lives of as many as three people.
Report Abuse. all the blood in body is circulated through heart that's mean 100% blood goes to heart. According to Love and Webb,1992, the brain uses approximately twenty percent of the body's blood and needs twenty-five percent of the body's oxygen supply to function optimally. Blood flow in a healthy person is 54 milliliters per 1000 grams of brain weight per minute.