Which of the following is the best definition of a system? A. a collection that shares the same function
B. The form and arrangement of an object or material.
C. Anything that takes up space and has mass.
D A group of objects and materials that are interrelated.

D. A group of objects and materials that are interrelated

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.