Question

which of these body systems interacts extensively with the skeletal system?
hematopoietic
muscular
endocrine
all of these body systems interact extensively with the skeletal system.

Explanation:

The hematopoietic system produces blood cells in bone marrow (part of skeletal system). Muscles attach to bones of skeletal system for movement. Endocrine system releases hormones that regulate bone growth and remodeling. So all interact with skeletal system.

Answer:

D. All of these body systems interact extensively with the skeletal system.