Final answer:
Chemical energy, mechanical energy, radiant energy, and electrical energy are the terms that best describe energy centers within the body.
Step-by-step explanation:
The terms that best describe energy centers within the body are chemical energy, mechanical energy, radiant energy, and electrical energy. Chemical energy is stored and released as chemical bonds are formed and broken. Mechanical energy directly powers physical activity.
Radiant energy is emitted as waves, such as in sunlight. Electrical energy is the power of moving electrons.