Which Statement Regarding Levers in Movement Is True

question 19

Multiple Choice

Which statement regarding levers in movement is true?

• A) An axis of movement and a single source of force are required to establish a lever.
• B) For a basic lever, usually there are two external or two internal forces.
• C) In the human body, levers usually involve a single force and axis of motion.
• D) Levers are utilized in the body when an external force is countered or controlled by muscle force.

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