In order for muscles to contract, which of the following must occur?

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    Actin heads must be able to bind with the myosin filament.
    Myosin heads must be able to pivot at their bases.
    Actin filaments must be able to stretch and elongate.
    The sarcomere must be fixed at a permanently stable position.
asked May 19, 2013 in Biology by anonymous
    

1 Answer

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Myosin heads must be able to pivot at their bases.
answered May 20, 2013 by Bioshare ~Top Expert~ (34,070 points)

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