if you have your actors go into a real place of business you will need a Location Release The Location Release says that the owners give you permission to shoot on their property. The Filming Permit is a legal document generated by a governmental body (like the City of LA) that gives you permission to shoot a film in that city.
1 Bone marrow: the tissue in the middle of bones that creates red and white blood cells 2  ... Compact bone: the heaviest, hardest type of bone in the body. 3  Lining cell: flat cells that make up and cover the outer layer of bone. 4  Marrow: a soft tissue found inside bones. 5  Osteoblast: cells make new bone.
2) the red marrow in bones produces white blood cells which protect against invading microorganisms. movement - bones form joints which provide levers for movement such as walking, lifting, etc. hematopoiesis (blood cell production) - the red marrow produces both red and white blood cells. mineral storage and homeostasis - the skeleton forms a reservoir of minerals, especially calcium, for maintenance of homeostasis. Cells found in bone tissue: osteoprogenitor cells - these are like stem cells for bone