In rhesus monkeys, one's place in the social hierarchy is ...

[kaid0807]

In rhesus monkeys, one's place in the social hierarchy is correlated with a male monkey's levels of
 
  a. serotonin.
 b. testosterone.
  c. dopamine.
 d. cortisol.

Question 2

In humans, lower levels of serotonin are correlated with
 
  a. positive emotions.
 b. aggression and depression.
 c. reduced appetite.
 d. diminished aggressive behavior.

[gcook]

Answer to Question 1

a

Answer to Question 2

b

[kaid0807]

Thanks for the timely response, appreciate it

[scottmt]

Gracias!