You have entered a 5k race. as you finish the last 500 meters, your body has converted energy to energy, and has lost some of this energy as

First blank: Chemical potential energy

Second blank: Kinetic energy

Third blank: Heat.

Explanation:

Chemical potential energy is the energy for stored in the body system for work. It's stored inform of ions and these ions are released for biophysicochemical activities of the body.

However, the chemical potential energy is converted to kinetic energy, which is the energy for motion in the body.

Then, heat is lost to the external environment during conversation of chemical potential energy to kinetic energy (based on the law of thermodynamics).

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."