According to the when its______ Group of answer choices sliding-filament model of muscle contraction, sarcomere contracts 1. Thin filaments, consisting of actin, push thick filaments toward each other 2. Thin filaments, consisting of myosin, push thick filaments toward each other 3. Thick filaments, consisting of myosin, propels thin filaments inward 4. Thick filaments, consisting of actin, propels thin filaments inward

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