According to one theory of aging, the genetic clock gradually switches off the genes that promote growth and switches on genes that promote aging.
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Q34: The "wear-and-tear theory" contends that the body
Q35: _ is a prediction that becomes true
Q36: The average life expectancy in the United
Q37: The existence of the Hayflick limit disproves
Q38: Gerontologists agree that the average life expectancy
Q40: _ has the highest life expectancy in
Q41: Which of the following is NOT an
Q42: Which distinguishes the "old-old" from the "young-old"?
A)
Q43: Designing settings and equipment so that they
Q44: In the United States, only 3 percent
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