Bone marrow: The soft blood-forming tissue that fills the cavities of bones and contains fat and immature and mature blood cells, including white blood cells, red blood cells, and platelets. Diseases or drugs that affect the bone marrow can affect the total counts of these cells.one marrow: The soft blood-forming tissue that fills the cavities of bones and contains fat and immature and mature blood cells, including white blood cells, red blood cells, and platelets. Diseases or drugs that affect the bone marrow can affect the total counts of these cells.
hooks (left) and loops (right). Velcro is a brandname and trademark owned by the Velcro Companies for hook-and-loop fasteners. Hook-and-loop fasteners have a hook side, which is a piece of fabric covered with tiny hooks, and a loop side, which is covered with even smaller and hairier loops.
Everything is held together with industrial strength Velcro. The bottom is 1 piece that unfolds and has flaps around the edge. The wall unit is 1 piece that opens up and sits on top of the floor piece.The flaps then come up and Velcro to the sides.Then you insert the rails. 2 of the rails go directly through the walls and the other 2 fit between them. This is what frames and steadies the box.verything is held together with industrial strength Velcro. The bottom is 1 piece that unfolds and has flaps around the edge. The wall unit is 1 piece that opens up and sits on top of the floor piece.