The structures on the ends of chromosomes that shorten each time a cell reproduces are called
a. telomeres.
b. collagen.
c. free radicals.
d. DNA.
a
You might also like to view...
Daydreaming, sleep, and near-death experiences are all types of __________.
A. physiological changes in consciousness B. psychological changes in consciousness C. spontaneously occurring changes in consciousness D. brain-induced changes in consciousness
Select the data for which a t-test would be the most appropriate statistic.
A. testing the relationship between weight and height of toddlers B. testing reaction times of participants who have had either 4 or 8 hours of sleep C. testing the effects of acidity and heat on three different brands of orange juice D. testing to see whether cancer deaths decrease as exercise increases
A middle-aged relative claims that he has "photographic memory." Based on the research, you can tell him that
a. this type of memory ability is actually quite rare in adults. b. he is more likely to have eidetic imagery. c. this type of memory ability is actually not at all rare in adults. d. if he has photographic memory, he probably lacks iconic memory.
According to the textbook, self-presentation is typically about
A) understanding ourselves. B) revealing ourselves. C) manufacturing ourselves. D) re-evaluating ourselves.