Many simple prototypes, such as cat and blue, are taught by means of __________
a. hierarchies c. exemplars
b. overextensions d. none of these
C
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Endorphins ____
a. ?are a type of neurotransmitter that block pain messages b. ?facilitate and increase the activity of dopamine c. ?create the sense of fatigue and pain felt when the body is stressed d. ?are associated with cell death following brain injury
Even though women produce less testosterone than men, this does not mean that they have lower sex drives. This is BEST explained by which of the following statements?
A) Women produce more unbound testosterone than men. B) Women's adrenal glands secrete free testosterone. C) Women's body cells are more sensitive to testosterone than men's. D) Women's sex drive is determined entirely by estrogen levels.
Which of the following statements about the nonexperimental research design is true?
A. We can show that changes in a dependent variable are caused by an independent variable. B. The behaviors or variables of interest are observed without an intervention or manipulation from the researcher. C. The study is structured like an experiment, except that the conditions and experiences of participants are not under the full control of the researcher. D. We can manipulate a preexisting variable that differentiates the groups or conditions being compared in a research study.
Friendships provide protection against ______.
A. change B. poverty C. emotions D. stress