Identify the embryonic germ layer (green) at “B”.  

Identify the structure (red) at “A”.

Does the area at “A” contain maternal or fetal blood?  

Identify the structure at “B”.

Identify the process that is happening to create structures C through F

 Identify the specific process  indicated at letter A.

Identify the REGION of the organ indicated by “B”.

Identify the structure (blue) at “A”.

    Identify region A. 

Properly identify the blue area labeled  5