Name the cells that form the structure labeled  “E”

Identify the structure at “A”.

 Identify the specific number of chromosomes in letter B.

               Identify the specific stem that will produce the daughter cell at A.

What specific cortical area is indicated by the arrow?  

List one body structure that the embryonic germ layer at “C” (yellow) gives rise to.

Identify the are at “B”.  Be specific.

Identify the process that is happening at the arrow

 Identify the specific structure at letter E. 

Is the blood in “A” flowing towards the placenta or towards the fetus?