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OpenStudy (anonymous):
Which of the following is correct about a muscle contraction? Sarcomeres produce actin and myosin. Myofibrils attach to Z lines. Myosin heads attach to sites on actin filaments. ATP causes fascicles to contract muscle fibers.
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OpenStudy (the_joker<3):
THE CORRECT ANSWER IS 3!!
OpenStudy (anonymous):
THANKS
OpenStudy (the_joker<3):
YEAH NO PROBLEM PUMPKIN!! >:}}
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