What is the general trend in the number of taste buds across the lifespan?
a) Taste buds are completely developed at age 8, reach a total of 5,000, and begin declining in number around age 25.
b) Throughout childhood, taste buds increase to a maximum of about 7,500, then they decline in number starting around age 40.
c) Throughout childhood, taste buds develop until they reach a maximum of 5,000; at around age 60 they decline rapidly in number.
d) Taste buds develop continuously throughout the lifespan, but they begin to decline rapidly at around age 50 when the number can be cut in half to as little as 1,000.
ANS: b
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Cultural variations in the emergence of basic skills such as sitting and walking demonstrate that environmental factors
a. do not affect early motor development. b. can accelerate or slow early motor development. c. can accelerate early motor development. d. can slow early motor development.
In operant conditioning, the process of delivering reinforcement for successive approximations to a desired behavior is referred to as:
a. shaping b. partial reinforcement c. modeling d. classical conditioning
According to Erikson, people enter the generativity-versus-stagnation stage during
A. adolescence. B. middle adulthood. C. old age. D. childhood.
__________is associated with nightmares
a. Lack of exercise c. Stress b. Eating too much before going to bed d. Depletion of dopamine