AP BIOLOGY

Detailed explanation-1: -The soft, spongy tissue that has many blood vessels and is found in the center of most bones. There are two types of bone marrow: red and yellow. Red bone marrow contains blood stem cells that can become red blood cells, white blood cells, or platelets.

Detailed explanation-2: -Red: Red bone marrow produces blood cells (hematopoiesis).

Detailed explanation-3: -Bone marrow contains two types of stem cells: mesenchymal and hematopoietic. Red bone marrow consists of a delicate, highly vascular fibrous tissue containing hematopoietic stem cells. These are blood-forming stem cells. Yellow bone marrow contains mesenchymal stem cells, or marrow stromal cells.

Detailed explanation-4: -There are 3 types of bone tissue: Compact tissue. This is the harder, outer tissue of bones. Cancellous tissue. This is the sponge-like tissue inside bones.

Detailed explanation-5: -Red bone marrow is primarily found in the medullary cavity of flat bones such as the sternum and pelvic girdle. This type of bone marrow contains hematopoietic stem cells, which are the stem cells that form blood cells.