The number of neurons in the human brain is estimated to range ...

[daltonest1984]

The number of neurons in the human brain is estimated to range from
 
  a. Twenty-five million to 50 million.
  b. Fifty million to 100 million.
  c. Twenty billion to 100 Billion.
  d. Twenty Trillion to 100 Trillion.

Question 2

Delta-9-THC has been shown to
 
  a. elevate extracellular levels of dopamine in the nucleus accumbens
  b. be self-administered by non-human animals
  c. be the major psychoactive compound in marijuana
  d. all of these

[AISCAMPING]

Answer to Question 1

c

Answer to Question 2

d

[daltonest1984]

Thanks for the timely response, appreciate it

[bigcheese9]

Gracias!