Check all of the structures that are associated with the brainstem.

  Identified the highlighted brain region.

Identify the flexors of the forearm at the elbow.  Select all the apply.

What brain structure produces melatonin?

 Identify the structured indicated by the letter A.

  Which letter indicates the scala vestibule?

Which of the following muscles is NOT involved with chewing?

 Identify the structure at the tip of the arrow.

What is the main action of the muscle at the tip of the arrow?  

Large populations of the southern bark beetle have recently moved into the forests of the Appalachian Mountains. These insects have killed large numbers of pines and severely impacting their ecosystems. This infestation is an example of