Identify the specific tubes at letter F.

Identify the process that is happening at the BLACK arrow

Identify the structure indicated by “F”

Identify the specific tubular structures at letter B.

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.