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.
RECOMMENDED LESSONS: Living organisms are made up of cells The first characteristic of a living thing is that, they are made up of cells. A cell is the basic building block of all organisms.It is the smallest unit of organization in a living thing. They contain the organismâs hereditary information (DNA) and can make copies of themselves in a process called mitosis. cell is the basic building block of all organisms. It is the smallest unit of organization in a living thing. They contain the organismâs hereditary information (DNA) and can make copies of themselves in a process called mitosis.