Rats receiving overdoses of heroin a. were more likely to die ...

[audie]

Rats receiving overdoses of heroin
 
  a. were more likely to die in their home cage than in an unfamiliar cage.
  b. were less likely to die in their home cage than in an unfamiliar cage.
  c. were equally likely to die in their home cage as in an unfamiliar cage.
  d. all died regardless of location.

Question 2

The tendency for experienced cocaine users to undergo a drop in core body temperature while viewing paraphernalia associated with cocaine use probably results from
 
  a. changes in enzymes.
 b. changes in the number of receptor sites.
  c. changes in receptor sensitivity.
 d. classical conditioning.

[k.lashomb]

Answer to Question 1

b

Answer to Question 2

d

[audie]

TYSM

[emsimon14]

Gracias!