Why are researchers particularly concerned about the effects of ...

[biggirl4568]

Why are researchers particularly concerned about the effects of heavy marijuana smoking on the user, based on recent studies?
 
  a. It produces cognitive deficits that are irreversible
  b. It causes memory deficits that persist at least a year after ceasing to smoke
  c. Daily use reduces the volume of the hippocampus and amygdala
  d. It causes major psychotic symptoms

Question 2

Spatial summation, by definition, can only occur on a multipolar neuron.
 
  Indicate whether the statement is true or false

[Kingjoffery]

Answer to Question 1

C

Answer to Question 2

True