Desmosomes are junctions that allow cell communication.

List one characteristic of intramembranous ossification

List one derivative of (what comes from) the following germ layers: Ectoderm –   Endoderm –  

List one derivative of (what comes from) the following germ layers: Mesoderm –   Endoderm –  

A transitional epithelium would be found

   What is a function of the organ at pointer A.

  Note the sperm cell at the bottom right. The layer at “A” is called the ______________________.

Name the layer at “C”.

  The hormone made by “A” is antagonistic to what other hormone?

   The grey cells at “B” are called _________________.