Identify the specific structure at letter E. 

Identify the specific layer at letter E.

Identify this structure labeled “A” 

  Name structure labeled “A”.

Identify the structures indicated by the arrows.    

Identify the process that is happening at letter B

 Identify the specific cell at letter B.

Identify a specific hormone that directly affects the organ…

  Give one function of structure labeled “A”.

  Name structure labeled “B”.