The statement that best explains the energy transformation process is that Chemical energy from broken bonds is transformed into mechanical energy for muscles. That is option A.
Respiration is defined as the process of intake of oxygen and the output of carbondioxide.
When oxygen is taken into the cells, they use it to break up chemical bonds to form energy as Adenosine triphosphate which helps the muscle to perform various activities.
Therefore, the statement that best explains the energy transformation process is that Chemical energy from broken bonds is transformed into mechanical energy for muscles.
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