Endurance: The CD jewel case has a tight and firm grip of the CD because of the tray's teeth or lock. Because of this, even if the CD jewel case is turned upside-down, left, or right, the CD is held in place. Flimsier cases may cause the CD to become loose, or even fall out.
The growth tissues of the plants are meristems. Meristems are the tissues that produce plant growth, and are the origin of all other tissues. They are formed of undifferentiated cells with an intense cell division rate.5. The vascular cambium is the secondary meristematic tissue that forms the vascular tissues (xylem and phloem) of the plant in roots and in the stem. Usually, the outer side of the vascular cambium produces a layer of phloem and the inner (more central) side of the tissue produces a layer of xylem.
Cells in the meristem, however, divide and produce all of the new cells in a plant. While meristem tissue is the source of the regenerative potential of a plant, meristems also play a pivotal role in normal plant growth.Plants have the unique ability to continue to grow and develop new organs while functioning as a mature, reproducing organism.oth roots and shoots have meristematic tissue at their tips called apical meristems that are responsible for the lengthening of roots and shoots. The shoot apical meristem is formed during embryonic development, but after germination gives rise to the stem, leaves, and flowers.