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.
Lesson Summary. A life cycle is defined as the developmental stages that occur during an organism's lifetime. In general, the life cycles of plants and animals have three basic stages including a fertilized egg or seed, immature juvenile, and adult.