The Democratic-Republican Party was the American political party in the 1790s of Thomas Jefferson and James Madison formed in opposition to the centralizing policies of the new Federalist party. It came to power in 1800, and dominated national and state affairs until the 1820s, when it faded away.
Spongy bone of the diaphysis is transformed into compact bone the activity of osteoclast (remove bone and widen marrow cavity). Osteoblast lay down concentric lamellae of bone making the Haversain system [structural unit of bone].
Running along the centre of long bones, such as your femur (thigh bone), is a cavity filled with bone marrow. Red bone marrow is a soft tissue that produces blood cells and yellow bone marrow is a store for fat. Bone can either be spongy or compact.Spongy bone is lightweight and made up of a mesh of needle-like pieces of bone with large spaces between them. Compact bone is dense and forms the outer layer of all your bones.unning along the centre of long bones, such as your femur (thigh bone), is a cavity filled with bone marrow. Red bone marrow is a soft tissue that produces blood cells and yellow bone marrow is a store for fat. Bone can either be spongy or compact.