Question

blood cells are produced in the ______ bone marrow. red yellow white

Explanation:

Bone marrow is a soft tissue found inside bones. Red bone marrow is responsible for producing blood cells, including red blood cells, white blood cells, and platelets. Yellow bone marrow mainly consists of fat cells and is less active in blood cell production. White is not a type of bone marrow related to blood cell production in this context.

Answer:

red