
Concept explainers
To determine: The type of muscle fiber that is present in a higher amount in the body of Person S that explains his success in long-duration activities.
Introduction: In the given case, Person S and Stuart are neighborhood friends that are athletes. Person S becomes a soccer player because he can overcome fatigue for a long time while Stuart becomes a baseball player because he is explosive in shorter duration events.
To determine: The ways by which the muscle fiber helps Person S to excel.
Introduction: The tissues that are present in the muscular system are known as muscle tissues. The muscle controls the voluntary and involuntary movements of the body. There are three types of muscles. These are skeletal muscle, cardiac muscle, and smooth muscle.

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Chapter 9 Solutions
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