How do psychoactive substances endanger a fetus’s normal development?
A. They increase movement of the fetus.
B. They cause the fetus to hallucinate.
C. They dry up the mother’s breast milk.
D. They cross the placenta into the fetus’s bloodstream.
Answer: D
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A neurotransmitter is released into a synapse, but it has no effect on a neighboring neuron. Which statement best accounts for the unresponsiveness of the neighboring neuron??
a. ?The neighboring neuron does not contain any neurotransmitters of its own. b. ?The neighboring neuron’s vesicles are defective. c. ?The neighboring neuron has an outer membrane. d. ?The neighboring neuron’s receptors do not accept this type of neurotransmitter.
Alcohol is a depressant
Indicate whether the statement is true or false
Which researcher was known for conducting the Bobo doll experiment?
a. Bandura b. Skinner c. Pavlov d. Watson
If a police siren is going off nearby, what is most likely responsible for the rise and fall you hear?
a. changes in amplitude b. changes in location c. changes in frequency d. changes in time of arrival