How does the endocrine system differ from other systems in the body?
a. Each gland can synthesize only one chemical (hormone) while other systems have the ability to produce a variety of chemicals (neurotransmitters).
b. It is the only system that operates entirely within the central nervous system, while all others systems operate outside of the CNS.
c. Each gland of the system produces its own hormones that are then released directly into the bloodstream.
d. The endocrine system is the only system in the body that is not controlled by the brain. It operates independently of the neurological system.
Answer: c. Each gland of the system produces its own hormones that are then released directly into the bloodstream.
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To increase construct validity, an experimenter should
a) Decrease external validity and decrease the number of experimental stimuli. b) Increase external validity and increase the number of experimental stimuli. c) Decrease variability in experimental procedure and decrease the number of experimenters. d) Increase power of the experiment and decrease the internal validity.
Which trait is consistent with the maturation of personality?
a. higher neuroticism b. lower neuroticism c. lower conscientiousness d. lower agreeableness