Drugs that some athletes use to "bulk up" or promote muscle growth are ________ steroids. They are synthetic versions of testosterone.

A neuron may produce another action potential in response to larger than normal depolarization during the a. absolute refractory period

b. relative refractory period. c. depolarization phase of the action potential. d. hyperpolarization phase of an action potential.

Which of the following responses to communication apprehension is the most common?

A) ?Excessive communication. B) ?Communication avoidance. C) ?Communication disruption. D) ?Communication withdrawal.