What is specifically contained in region F?

Is the blood in “B” flowing towards the placenta or towards…

Name the cells that make up the structure labeled “C”

Name the cells that form the structures labeled A and B.

Name the cell indicated by “D” 

Name the hormone produced by the organ at pointer A that con…

The regions labeled 3 and 4  together make up what layer of…

Properly identify the stage labeled  “J”

Identify the structure at the arrow labeled “B”

The substance a pointer A contains what specific hormone?