The answer is the letter R !!
The letter R
The bone marrow
bones are living they grow gradually with bone marrow
the living components of a bone is the bone marrow and everything. the hard bone ain't living alright!!!!!!!!
There is yellow bone marrow and red bone marrow.
in the bone marrow.
The innermost part of the bone in called the Bone Marrow or inner bone
it is a bone that has a marrow in the middle of the musle that causes the bone to have a marrow biopsy
They are not made up of bone marrow, they just have bone marrow in them.
Bone marrow.
The bone marrow in the medullary cavity contains only yellow bone marrow, for fat storage. The spongy bone contains both red bone marrow (blood production) and yellow bone marrow.
bone marrow
well bone marrow is a substance that is inside of the bone, so there for bone marrow is part of the skeletal system.