When telomeres, protective structures at the end of chromosomes, shorten to a critical length,
a. the telomere dies.
b. the cell stops replicating.
c. RNA increases production.
d. T-cells become critical.
Answer: b
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______________ , in conjunction with a healthy lifestyle, can slow the physiological aging process.
A. A good outlook on life B. Immunizations C. Good relationships with family D. A program of regular exercise
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Indicate whether the statement is true or false
What is the major problem with using participant observation as a research tool?
A) It often leads to findings that lack generalizability. B) It is unacceptable based on standards of the American Sociological Association. C) It lacks both validity and reliability. D) It is highly biased.