Jim wants to tone his abdomen and create "six-pack abs." What exercise do you recommend for him? What muscle will he be exercising?
What will be an ideal response?
Jim should exercise his rectus abdominis muscle by performing sit-ups, a muscle that performs trunk flexion.
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During exercise, blood flow to skeletal muscles increases. What other blood flow changes occur?
A. Blood flow to coronary vessels increases, and flow to abdominal organs decreases. B. Blood flow to skin decreases, and flow to the kidneys increases. C. Blood flow to coronary vessels increases, and flow to skin and brain decreases. D. Blood flow to skin, heart, and kidneys decreases.
Disease-causing agents are called
A) pathogens. B) antibodies. C) bugs. D) germs.
Which of the following is NOT a component of the scientific method?
A. Hypothesis B. Theory C. Observations D. Conclusions E. Experiment
Why does a person who had done substantial endurance exercise over a long period have a lower resting heart rate?
What will be an ideal response?