A. skeletal system
The skeletal system supports the body, protects internal organs, and is involved in the production of blood cells (hematopoiesis) in the bone marrow.
A.
skeletal system
B.
muscular system
C.
nervous system
D.
circulatory system
1 answer
A. skeletal system
The skeletal system supports the body, protects internal organs, and is involved in the production of blood cells (hematopoiesis) in the bone marrow.