As we age, the resting heart rate
slows precipitously.
fluctuates a great deal.
remains stable.
increases greatly.
Question 2The age-related biological changes that occur during the first decades of adulthood
affect all areas of functioning equally.
increase the risk of death.
are of little consequence under normal circumstances.
affect athletic performance but not sexual performance.
Question 3Fifty-year-olds can expect to retain ______ percent of the muscle strength they had at age 20.
30
50
70
90
Question 4At age 50, a man can expect to
feel exhausted after doing routine chores.
notice that his resting heart rate is slower.
feel almost as strong as he did at age 20.
experience severe loss of cartilage in his knees.
Question 5A 50-year-old will most likely be slower than a 20-year-old in
running up several flights of stairs.
mowing the lawn.
cleaning the house.
routine activities at work.
Question 6The term organ reserve refers to
a decline in functioning of major organs, such as the heart.
the practice of conserving and transplanting solid organs.
the mechanism that automatically maintains physiological balance.
the extra capacity available to an organ when subjected to stress.
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