Globally, more than 1 billion people are addicted to ...

[darbym82]

Globally, more than 1 billion people are addicted to _____________ , and more than 76 million are addicted to _____________ .
 
  A) heroin; marijuana
  B) nicotine: alcohol
  C) heroin; cocaine
  D) heroin; prescription drugs
  E) marijuana; heroin

Question 2

Describe the neural and molecular mechanisms of the circadian clock and the research that led to their discovery.
 
  What will be an ideal response?

[matt]

Answer to Question 1

Answer: B

Answer to Question 2

Answer:
40 for describing the suprachiasmatic nuclei and relevant research
30 for describing the retinohypothalamic tracts and relevant research
30 for describing the genetic mechanisms of circadian rhythms and the related research