The end diastolic volume in a rapidly beating heart (hr about 170/min) will be reduced because

Because when the heartbeat is accelerated, the amount of blood ejected into the body becomes greater, decreasing the amount of blood inside the veins.

Explanation:

Diastolic volume is the term used to describe the blood that is present in the ventricles after the diastole is performed. Distole is the period in which the heart enters a state of relaxation, right after the cardiac muscle contraction that allows blood to be expelled from the heart to the organism.

When a person's heartbeat is accelerating, a greater volume of blood is ejected into the body, causing the volume of blood inside the ventricles to be less. As a result, the final diastolic volume will be reduced.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."