Which of the following statements about cellular aging is true?
Cells can replicate indefinitely, but errors do occur.
Aging may be caused by the inevitable loss of the ability of cells to duplicate
perfectly.
Damage is caused by free radicals that slow down the cell duplication
process.
Cells from adults are able to duplicate more quickly and more times than are
cells from embryos.
Aging may be caused by the inevitable loss of the ability of cells to duplicate
perfectly.
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Which term describes the process of concentrating on one limited aspect of a stimulus and ignoring other aspects?
A. symbolic functioning B. language acquisition C. centration D. concrete operations
Which kind of memory holds seven or eight items of information for several seconds?
A. sensory memory B. long-term memory C. short-term memory D. echoic memory
At what age do children become sensitized to sounds that make up their native language?
a. before 1 month c. by about 10 months b. by about 6 months d. by about one year
A good theory
A) provides an ultimate truth. B) cannot be scientifically verified. C) describes, explains, and predicts behavior. D) is not influenced by the cultural values or beliefs of its time.