Duncan is addicted to heroin and has to keep increasing his ...

[bclement10]

Duncan is addicted to heroin and has to keep increasing his dosage to get the same effects. This effect of addiction is called ____.
 
  a. psychoactive dependence
  b. psychological independence
  c. drug tolerance
  d. habituation

Question 2

According to Robert Sternberg's triangular model of love, intimacy is most crucial in short-term relationships.
 
  Indicate whether the statement is true or false

[Zebsrer]

Answer to Question 1

ANSWER:
c

Answer to Question 2

False

[bclement10]

Wow, this really help

[steff9894]

Thanks for the timely response, appreciate it