The life cycle of all tracheophytes (vascular plants), bryophytes (mosses and liverworts), and many algae and fungi is based on an alternation of generations, or different life phases: the gametophyte, which produces gametes, or sex cells, alternating with the sporophyte, which produces spores.
This site is best experienced using Internet Explorer 8 or Firefox. Twin City Die Castings (TCDC) is a full service provider of precision aluminum and magnesium die castings. TCDC has been family owned since 1919 when it was founded in Minneapolis, Minnesota. We now have three ISO/TS 16949:2009 certified US locations.
Tethered Cord (TC) is a disorder in which the spinal cord is âstuckâ to a structure within the spine such as dura, scar tissue from a previous operation, a bony spicule or even a tumor.ethered Cord. Tethered Cord Syndrome can be difficult to diagnose in babies and children since the symptoms may be subtle and insidious over time. The most common symptoms of tethered cord, such as back pain, abnormal gait and urinary accidents are frequently attributed to other causes during childhood.