What Led Researchers to the Conclusion That Regular Physical Activity

question 2

Multiple Choice

What led researchers to the conclusion that regular physical activity over a lifetime may overcome the effects of inherited risk?

• A)Death rates have continued to decline among lifetime exercisers.
• B)Twin studies have shown active people are less likely to die early than inactive people.
• C)Cardiovascular diseases are less prevalent among active twins than inactive twins.
• D)It is not possible to overcome a family history of disease.

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Definitions:

Axon

A long, slender projection of a nerve cell, or neuron, that typically conducts electrical impulses away from the neuron's cell body.

Sarcomere

The basic contractile unit of muscle fiber, consisting of actin and myosin filaments, responsible for muscle contraction.

Myofilaments

The filamentous components of muscle cells, including actin and myosin, responsible for muscle contraction.

Actin

A globular protein that forms long filaments which are essential components of the cytoskeleton in cells and interact with myosin in muscle cells to facilitate contraction.