Older adults perform ___________ on most _____________ tests than do younger adults.
a. better; vocabulary and knowledge
b. better; free recall
c. worse; recognition memory
d. worse; problem solving
Ans: a. better; vocabulary and knowledge
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Eight-year-old Eric watches as you flatten one of two equal-sized balls of clay into a pancake. Eric says they both still have the same amount of clay. When he is asked how he knows that the ball and the pancake have the same amount of clay, he points out that the pancake could once again be rolled up into a ball, demonstrating that he
a. is now in the preoperational stage. b. understands the concept of reversibility. c. is unable to decenter. d. is no longer egocentric.
A school nurse is demonstrating the use of a peak flow meter to help children with chronic asthma recognize when they need to use a rescue inhaler. which of the following levels of prevention is being used by the nurse
a. Primary b. Secondary c. Tertiary d. Both primary and secondary
Recent research on the brains of adolescents indicates that development in the prefrontal cortex undergoes a _____ just before puberty and a(n) _____ during adolescence.
A) growth spurt; additional growth spurt B) synaptic proliferation; synaptic pruning C) synaptic pruning; synaptic proliferation D) reduction in neurotransmitters; further reduction
The arrival of an action potential at the axon terminal results in the opening of
a. voltage-dependent magnesium channels. b. ligand-gated magnesium channels c. voltage-dependent calcium channels. d. ligand-gated calcium channels.