As people grow old, their:
A. lenses tend to yellow and the muscles controlling the eye loosen.
B. lenses tend to blacken and the muscles controlling the eye loosen.
C. lenses tend to yellow and the muscles controlling the eye stiffen.
D. lenses tend to blacken and the muscles controlling the eye stiffen.
Answer: C. lenses tend to yellow and the muscles controlling the eye stiffen.
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Suddenly, Leticia is unable to remember what she was doing. She screams that bugs are crawling all over the walls. She begins to wildly swing her arms around. She can't fall asleep at night, but finally falls asleep at daylight. Leticia is most likely experiencing __________.
A. dementia B. focal brain damage C. depression D. delirium
If Fiona is a typical six-year-old, she would most likely
a. weigh about 45 pounds and be about 45 inches tall. b. weigh about 60 pounds and be about 45 inches tall c. weigh about 45 pounds and be about 60 inches tall. d. weigh about 60 pounds and be about 60 inches tall.
Which statement is true with respect to evolution?
A. "If you don't use it, you lose it." B. Evolutionary success is assessed by the number of one's offspring surviving to reproduce. C. Evolution benefits the species, in the long run. D. Evolution benefits the individual.
__________ is to increased anxiety as __________ is to relieve anxiety
a) Obsession; compulsion b) Compulsion; obsession c) Classical conditioning; operant conditioning d) Social phobia; simple phobia