Heather considers herself a “chocoholic.” When she is having a bad day, she knows that a few bites of chocolate will always make her feel better. Which area of her brain is responsible for this effect??
a. ?somatosensory cortex
b. ?orbitofrontal cortex
c. ?thalamus
d. ?medulla
ANSWER:
b
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Jack is sound asleep when his wife suddenly turns on the bedroom light and awakens him. Upon opening his eyes, Jack temporarily finds the bright light painful because ____.?
a. ?light adaptation has not yet occurred b. ?dark adaptation has not yet occurred c. ?he does not have enough photopigment in his retina yet d. ?photopigment storage has rapidly accelerated because of the light
Discuss possible reasons why sexual activity for men is higher than for women during the years of old age.
What will be an ideal response?
What is the principle that indicates that after about 50 doublings, cells lose their ability to replicate?
a. Hayflick limit b. cell limit c. replication limit d. HELA limit
In actual experimentation, random sampling rarely is used. Rather, _____ sampling
typically is used. a. stratified b. clustered c. occasional d. convenience