Identify the specific structure at letter E. 

List one body structure that the embryonic germ layer at “B”…

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

Identify the process that is happening at the blue arrow

Name the cells indicated by “A” 

Identify the developmental stage of embryogenesis at the poi…

 Identify the specific cell at letter B.

Identify the process that is happening at letter B

Identify the structures indicated by the arrows.    

  Name structure labeled “A”.