Dr. Thornton discovers a gene that he calls AATF-1 (accelerated aging transcription factor-1). When Dr. Thornton deletes this gene in mice, the mice show increased longevity. Thus, he proposes a new model of aging that fits within the ____.
A. evolutionary theories of aging
B. cellular-damage theories of aging
C. homologous theories of aging
D. programmed theories of aging
Answer: D
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Kayla's core body temperature has risen 1.5 degrees in the last half hour. This change in body temperature means that it is most likely that Kayla
a. has just fallen asleep. b. will fall asleep in the next 60 minutes. c. has just woken up. d. has been meditating for the past 30 minutes.
Nemo wishes to leave home and begin an adventure that will challenge his skills as a person and lead to a better understanding of himself. According to Erik Erikson, Nemo is in which stage of psychosocial development?
A. generativity vs. stagnation B. identity vs. identity confusion C. autonomy vs. shame D. basic trust vs. mistrust
The burden of taking care of aging parents is equally shared by men and women.
Answer the following statement true (T) or false (F)
The inclusion of a control group
a) always makes a study internally valid. b) is part of the criteria for a design to be considered an experiment. c) can never be done ethically when examining the effectiveness of therapy. d) all of the above.