Intramembraneous ossification starts in connective tissue from mesenchymal cells that become osteoblasts. These osteoblasts cluster togehter into an ossification center. Endochondral ossification starts with a hyaline cartilage template. Mesenchymal cells become osteoblasts and begin forming bone around the cartilage.
Noun. 1. farm bill-a statute that would regulate farm production and prices.oun. 1. farm bill-a statute that would regulate farm production and prices.
In the United States Congress, a Christmas tree bill is a political term referring to a bill that attracts many, often unrelated, floor amendments. A Christmas tree bill consists of many riders. The amendments which adorn the bill may provide special benefits to various groups or interests. The term refers to the proposed legislation being subject to having each member of Congress hang their own amendment on it.