To avoid serious symptoms, spend time in sunlight and eat foods that are good sources of vitamin D, including milk, eggs, fish oil, mackerel, sardines, canned salmon, tuna, soy, seaweed, broccoli, molasses, legumes, beans, almonds and oranges.
Leaves, stems, roots, and flowers are all made up of various tissues. Plant Tissues Plant Tissues fall into two large categories: Meristematic, or Permanent (Non-Meristematic) Meristematic Tissues Meristems are places in plants where cell division is occurring. During cell division, one cell becomes two cells.Each new cell can also divide.lant Tissues Plant Tissues fall into two large categories: Meristematic, or Permanent (Non-Meristematic) Meristematic Tissues Meristems are places in plants where cell division is occurring. During cell division, one cell becomes two cells. Each new cell can also divide.
Internal Anatomy: The internal anatomy of a plant will change as the plant matures. The shoot tissues arise from the shoot apical meristem as dermal tissue, ground tissue, and vascular tissue. Secondary meristems (vascular cambium and cork cambium) then add girth to the plant by adding secondary xylem, phloem, and cork. Top of Page.