Question

bio - 201 topic 3: the integument, skeleton, and articulations
practice it
what is bone marrow?
a hard substance found inside bones that protects them from damage.
a mineral that is important for bone health.
soft, spongy tissue found inside bones that produces blood cells.
the hard outer layer of bones.
a soft substance found on the outside of bones that provides nutrients to the bone.

Explanation:

Bone marrow is a soft, spongy tissue located inside bones. It is responsible for producing blood - cells such as red blood cells, white blood cells, and platelets.

Answer:

Soft, spongy tissue found inside bones that produces blood cells.