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.
All living things called organisms have something in common. All organisms, from the smallest to the largest, are all made of cells. A cell is the basic unit of life. It is the smallest unit (or building block) of a living organism that is capable of life. A cell is the smallest unit of living matter there is and each one must be able to carry out the processes of life. Within cells, there are structures that work together to allow the cell to live.