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.
Organisms are living things. All living things share six important characteristics. All living things have a cellular organization, contain similar chemicals, use energy, respond to their surroundings, grow and develop, and reproduce. A cell is the basic unit of structure and function in an organism. Unicellular, or single-celled, organisms include bacteria, the most numerous organisms on Earth.