Diff: 2 Page Ref: 685-686. 18) If the vagal nerves to the heart were cut, the result would be that ________. A) the heart would stop, since the vagal nerves trigger the heart to contract. B) the heart rate would increase by about 25 beats per minute. C) the AV node would become the pacemaker of the heart.
Living things have seven essential processes in common:  movement, respiration, sensitivity, growth, reproduction, excretion and nutrition. All things fall into one of three categories: living, used to be living or not living; the presence of all seven life processes indicates a living thing.
1 Process in which some substances are broken down to yield energy for vital processes while other substances, necessary for life, are synthesized. 2  The set of chemical reactions that occur in living organisms to maintain life. 3  Metabolism is the process your body uses to burn calories for energy. The set of chemical reactions that occur in living organisms to maintain life. 2  Metabolism is the process your body uses to burn calories for energy. 3  Metabolism is the rate at which your body burns calories to sustain life.