Pernicious Anemia. Macrocytic anemia, glossitis, peripheral neuropathy, weakness, hyperreflexia, ataxia, and other neurological manifestations characterize classical vitamin B12 (cobalamin) deficiency. It is common, however, to encounter patients with vitamin B12 deficiency who have atypical clinical or laboratory features.
Nutrient, Liquid and Energy Distribution. Most of the advantages of vascular tissues stem from this functional one: A tracheophyte's xylem and phloem--which comprise the vascular system and are housed in the stem--enable liquids, nutrients and energy to be transported and distributed throughout the whole of the plant.
In botany, vascular tissues include xylem and phloem. Xylem is the type of vascular tissue that moves water and dissolved nutrients from the roots to the leaves. The xylem are â¦ one-way roads, however. No particles can move down the tree through the xylem.xygen diffuses directly from the air to corneal cells to keep the cornea transparent. There are fewer blood vessels in connective tissue and bone than in high metabolic areas such as muscle cells and organ cells, but blood vessels (vascular tissue) is found all over the body.