According to the "random events" theory, as spontaneous or externally caused mutations accumulate, __________.
a. cell repair becomes more efficient
b. telomeres lengthen, protecting the aging cell
c. cell replacement becomes more efficient
d. abnormal cancerous cells are often produced
Answer: d. abnormal cancerous cells are often produced
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An advantage of randomly assigning subjects to groups is:
A. to make the groups equal in number B. that it reduces the chance that other variables will bias the results C. to ensure that the sample is representative of the population D. to make the groups as different as possible from each other
Ike heard voices telling him the children had put worms in his brain. He planned for weeks how he would kill them. Ike's insanity defense failed. The jury must have decided that:
a. he did not have serious psychological problems b. he met the cultural and statistical deviance criteria but not the dysfunction or distress criteria c. a medical problem, not a psychological problem, caused his thought disorder d. he was capable of understanding the wrongfulness of his actions
"Natural selection" is a process by which
A) favorable traits become increasingly common in a population of interbreeding individuals, while traits that are unfavorable become less common. B) animal breeders select animals in each generation that have the most "natural" traits to breed the next generation. C) favorable traits become increasingly common in a population over the course of a single generation. D) genetic mutations lead to random changes within a population of organisms.
According to Plato, which is the most important Form, or eternal truth?
a. truth c. goodness b. beauty d. unity