How do your bones and muscles work together to move ?

Bones protect the organs and give the muscles something to work on
muscles contract and let go to move. 

I'm just a middle schooler don't ask me. watch some bill nye

They're the masses of tough, elastic tissue that pull our bones when we move. together, our bones, muscles, and joints - along with tendons, ligaments, and cartilage - form our musculoskeletal system and enable us to do everyday physical activities

The answer is c hope this

The hawk receives 0.1% energy from the caterpillar although the caterpillar gets eaten by another bird smaller than the hawk first