T cell is to B cell as ______ is to ______.
A. thymus; bone marrow
B. digesting foreign cells; destroying damaged cells
C. destroying damaged cells; digesting foreign cells
D. bone marrow; thymus
A. thymus; bone marrow
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If electrical stimulation of a brain structure results in an animal's eating constantly and gaining weight rapidly, the structure stimulated MOST likely is the
a. frontal lobe. b. thalamus. c. hypothalamus. d. limbic system.
Whereas people often observe inaccurately, science avoids such errors by making ______ a careful and deliberate activity
a. reason b. description c. fallacy d. observation
Time out, which involves removing a person from a situation in which reinforcement could occur, is a variation of
a. response cost. b. classical conditioning. c. shaping. d. reciprocal inhibition.
Prior to emerging adulthood's classification as a distinct age group, competitive extreme sports were essentially nonexistent
Indicate whether this statement is true or false.