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.
Vascular tissue. vascular tissue. (botany) plant tissue that transports nutrients and water throughout a plant; as veins and arteries are to animals. The two kind of vascular tissue are xylem (used mainly for water) and phloem (used more for nutrients).ascular tissue. vascular tissue. (botany) plant tissue that transports nutrients and water throughout a plant; as veins and arteries are to animals. The two kind of vascular tissue are xylem (used mainly for water) and phloem (used more for nutrients).