the less active you are the fewer calories you need to consume
so false.
The first option would be correct. RAISED HEART RATE AND SPED-UP NERVOUS SYSTEM.
Answer:With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.
Explanation:
The "managed care revolution of the 1990s" achieved an important, if temporary, success. It stabilized health insurance
