mjufygugik6935 mjufygugik6935 28-12-2023 Biology contestada Myofibrils are constructed of overlapping strands of protein polymers called: 1) Tropin and tropomyosin 2) Actin and tropomyosin 3) Tropin and myosin 4) Actin and myosin 5) Tropoactin and tropomyosin