Final answer:
Julian's toes function as a fulcrum in the lever system when he stands on his toes to lift his body.
Explanation:
In this example, Julian's toes function as a fulcrum in a lever system. When he stands on his toes to lift his body, the toes act as the pivot point around which the movement occurs. The foot acts as a lever arm with the calf muscle providing the upward effort, the body weight acting as the downward load, and the ball of the foot acting as the fulcrum.
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