As you have probably guessed, the main function of the muscular system is movement, but it also helps stabilize our joints, maintain our posture and generate heat during activity. Movement of our body can be voluntary and controlled by the skeletal muscles, or it can be involuntary and controlled by smooth muscles.
There is still room for doubt because they can never be too sure whether there is evidence for life found in the graphite!
They are held together by weak hydrogen bonds
