Question : 21.Currently, scientists estimate that 120 years the _________ for human : 1245492

21.Currently, scientists estimate that 120 years is the _________ for human beings, because there is a limit to how long certain organ systems can last without replacement.

a.maximum life expectancyc.useful life expectancy

b.longevityd.average life expectancy

22.Ruphail is a European American child who was born yesterday. Donald is an African American child who was also born yesterday. Which of the following is the MOST accurate statement about these two children?

a.Ruphail begins his life with a lower maximum life expectancy than Donald.

b.Donald begins his life with a lower useful life expectancy than Ruphail.

c.Ruphail begins his life with a lower longevity than Donald.

d.Donald begins his life with a lower average life expectancy than Ruphail.

23.Of countries examined, the lowest life expectancy is 38 years in _________.

a.Sana’a, Yemenc.Sierra Leone, Africa

b.Brasilia, Brazild.Sri Jayawardenapura-Kotte, Sri Lanka

24.The longevity of women tends to be higher than that of men in most developed countries, but that advantage is not found in developing countries. Which of the following is a reason for this loss of extra female longevity?

a.Women are more susceptible to fatal infections in developing countries, because they do not work outside of the home and are not physiologically able to develop natural immunities.

b.Women are not provided with health care in many developing countries, and thus often die before the age of 30 years.

c.There is more female death in childbirth in developing countries, which partially explains the loss of female longevity advantage.

d.The rates of honor killings of women are so high in developing countries that the longevity advantage is eliminated.

25.Genetic factors appear to play _____ role in determining whether people reach centenarian status.

a.noc.some

b.a minimald.a major

26.Salvatore is discussing the issue of aging and death with some of his classmates. “I don’t know about the rest of you,” he says, “but I think that we’re all born with a predetermined amount of time that we are going to live, and there isn’t much we can do to extend that time.” Salvatore seems to be a proponent of ________ theories of aging.

a.errorc.programmed

b.damaged.longevity

27.The innate ability of human cells to self-destruct, the clocklike changes in some hormones, and the decline of effectiveness of the human immune system are all factors that lend support to ________ theories of aging.

a.wear-and-tearc.error

b.programmedd.diathesis

28.Perhaps you’ve seen commercials on television that advertise skin products that “reduce free radicals and enhance your youthful appearance.” These products are actually forwarding a ________ theory of aging.

a.programmedc.longevity

b.damage or errord.abnutrition

29.____ is best explained by the wear-and-tear theory of aging.

a.AIDS

b.Joint deterioration during osteoarthritis

c.A misshapen blood cell in sickle-cell disease

d.Alzheimer’s disease

30.Which of the following theories suggest that the waste byproducts of normal cellular activity actually cause the problems associated with aging?

a.telomerease theoryc.metabolic discharge theory

b.free radical theoryd.reuptake theory

 

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