Testosterone can mediate which of the following?

can increase anger

Explanation:

High levels of androgens (such as those used by athletes) can increase anger ('roid rage). Most anger problems in men are caused by decreased levels of testosterone. Low testosterone is associated with low libido, loss of erections, irritability anger, fatigue, and low energy.

In both cases (high or low) anger can be mediated through testeterone.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.