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).

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