There exists a _____ between social status and immune functioning; a likely variable responsible for this finding is _____.
A) positive correlation; stress
B) negative correlation; exercise
C) nonassociation; genetics
D) causal relationship; lifestyle choices
A) positive correlation; stress
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Research has shown that bullies are a homogeneous group who share nearly identical characteristics leading to their bullying behavior
Indicate whether the statement is true or false
Spitz' classic study of infants in an orphanage showed that institutionalized children who receive little or no social stimulation:
a. appeared depressed and lethargic. b. showed great interest in adults when given more stimulation. c. were profoundly retarded. d. all of these
Which of the following statements is true of an action potential?
A. Just after an action potential has passed through a section of an axon, a neuron can fire again immediately if it receives enough stimulation. B. After an impulse has passed through a particular section of an axon, negative ions are pumped out of that section, and its charge returns to positive while an action potential continues to move along the axon. C. An action potential moves from one end of an axon to the other like a flame moving along a fuse. D. As an impulse travels along an axon, the movement of ions changes the charge from positive to neutral in successive sections of the axon.
Evolutionary theorists speculate that our unique capacity to act prosocially toward genetic strangers originated
A) when man began walking upright. B) several million years ago. C) about 500 years ago. D) during the Reformation.