Termite baiting is really a simple process, but can be confusing since there are so many bait products to choose from. The bottom line is that all termite bait systems work. Some take longer than others to achieve control.
The somatic mesoderm, which is adjacent to the ectoderm and amnion, gives rise to the bones, ligaments, blood vessels, and connective tissue of the limbs.
1 The ectoderm layer will give rise to neural tissue, as well as the epidermis.  The mesoderm develops into somites which differentiate into skeletal and muscle tissues, the notochord, blood vessels, dermis, and connective tissues.