If signs of low blood sugar do not improve after you have eaten a snack that has sugar: 1  Get a ride to the emergency room. DO NOT drive yourself. 2  Call a local emergency number (such as 911)
Pith, or medulla, is a tissue in the stems of vascular plants. Pith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant. In eudicots, pith is located in the center of the stem.In monocots, it extends also into flowering stems and roots.The pith is encircled by a ring of xylem; the xylem, in turn, is encircled by a ring of phloem.ith is composed of soft, spongy parenchyma cells, which store and transport nutrients throughout the plant. In eudicots, pith is located in the center of the stem.
Root System. Beneath the epidermis of the plant's root is a layer called the cortex, which is made up of layers of cells called vascular rays. The vascular rays carry water through the root and into the stele, the center of the root.Inside the stele are veins that serve as the circulatory system of the plant.oot System. Beneath the epidermis of the plant's root is a layer called the cortex, which is made up of layers of cells called vascular rays. The vascular rays carry water through the root and into the stele, the center of the root.