Which of the following is INCORRECT about myofilaments?
A) Myofilaments are composed of the proteins actin and myosin.
B) Thick myofilaments are composed of myosin.
C) Actin and myosin decrease in length during muscle contraction.
D) Thin myofilaments are composed of actin.
E) Myofilaments change position during muscle contraction.
Correct Answer:
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