A(n) _____ is a drug that blocks the actions of a neurotransmitter
a. agonist
b. antagonist
c. stop agent
d. endorphin
Answer: B
Rationale: Blocking acetylcholine could lead to paralysis of the heart and lungs; however, when very small amounts are injected into tissue around the eyes, the antagonist simply paralyzes the muscle activity that leads to wrinkles.
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Research on building memory suggests that
A) children learn how to structure personally significant memories in narrative form by conversing about them with adults. B) fuzzy traces are more likely than verbatim memories to be forgotten. C) children begin to talk about the past with others sometime during their third year. D) scripts often clutter long-term memory with unimportant information.
If Andrew is a normal, healthy baby who weighed 8 pounds at birth, about how much would you expect him to weigh at age 4 months:
a. 10 pounds b. 13 pounds c. 16 pounds d. 21 pounds