A neuron’s axon ____
a. ?is nearly always less than two millimeters in length
b. ?is usually completely covered in myelin from end-to-end
c. ?can either by myelinated or unmyelinated
d. ?usually ends in one “bulb,” which physically connects to the next neuron
ANSWER:
c
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A night terror occurs during REM sleep.
a. true b. false
Regarding social dilemmas, which of the following statements is FALSE?
a. Social dilemmas contribute to many environmental problems. b. A social dilemma is illustrated when "driving" becoming inconvenient in large cities because everyone wants to drive an individual car rather than carpooling. c. In a typical social dilemma, people intentionally decide to act against the group interest. d. A social dilemma is any social situation that rewards actions that ultimately cause undesirable effects.