A specialized bone cell that produces and deposits the matrix that is needed for the development of new bone and consists primarily of collagen fibers. Osteoblasts are formed from osteoclasts on the outer surfaces of bone and in bone cavities, and bone deposition takes place constantly in living bone. As new bone grows and hardens with the addition of calcium and phosphate, osteoblasts become embedded in the bone matrix and develop into osteocytes.
Making the world better, one answer at a time. Many animals live in Rome. The Brown Bear and European Lynx, which were thought to be extinct in Italy, have made a comeback. Other animals include Italian Deer, Italian Porcupine, Wild Boars, and over 70 species of birds, including seagulls, starlings, and the Hoopoe Bird.
Where. Italy Rome. The Flavian amphitheatre or Colosseum of Rome, Italy, completed in AD 80, covers 2 ha (5 acres) and has a capacity of 87,000. It has a maximum length of 187 m (612 ft) and a maximum width of 157 m (515 ft). Records change on a daily basis and are not immediately published online. For the most up to date record information, we welcome your questions via Facebook or Twitter. Comments below may relate to previous holders of this record.