Most of the axons in the central nervous system are wrapped in myelin, a substance rich in lipids (fatty substances) and proteins. Like the coating around an electrical wire, myelin insulates and protects the axon and helps speed nerve transmission.
Potato/Semi Round Pearls. Potato pearls are some of the less expensive freshwater pearls to be found on the market, but their look is anything but cheap. You can purchase potato pearls in every color of the rainbow, and craft beautiful one of a kind creations for gifts and your own collection.
What is a sweet potato slip? It is an eye that has sprouted on a sweet potato. That sprout is then grown 8 to 10 inches, and then cut just below the leaf joint. The leaf joint is then placed in moist potting mix or a shallow amount of water to begin to promote roots. Most vegetables start as seeds, but sweet potatoes start with slips.