When an action potential reaches the end of an axon, the depolarization causes what ionic movement in the presynaptic cell?
a. sodium out of the cell
b. lithium out of the cell
c. iron into the cell
d. calcium into the cell
d
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According to the Department of Health and Human Services, about ______ of 18- to 39-year-olds smoke cigarettes regularly.
A. one fourth B. one third C. half D. two thirds
After many jobs in clinical psychology shifted from academic to private practice settings in the 1960s,
a. complaints arose about the adequacy of the Boulder model for practitioners. b. many college and university psychology departments shrank due to problems retaining their faculty. c. the qualifications required to practice clinically became much more rigorous than before. d. the qualifications required to enter graduate school in clinical psychology became less rigorous than before.
With the palmar reflex:
a. the child grasps objects pressed against the palm of his/her hand with four fingers. b. the child shows a startle response in reaction to sudden changes in position. c. the child voluntarily reaches for and grasps objects. d. the child moves his/her head in the direction of sounds.
Which type of thought does not begin until the stage of formal operations thought?
a) thinking about what is possible b) thinking about what is logical c) thinking about whether an object exists when it is out of sight d) thinking about only one feature of an object rather than taking all features into consideration